Four wheel sound insulation and chassis sound insulation are compared, which sound insulation effect

Four-wheel sound insulation and chassis sound insulation are compared, which sound insulation effect is better? Cars are currently very common, with the increase in car ownership, the demand of users is also increasing, and there is also a market for the car beauty industry. A lot of people don't have much money to buy a good vehicle, but everyone wants their vehicle to be good.

At least in the eyes of others.

So, the driving experience is important in the eyes of others. An important factor in the driving experience is the quietness of the car's soundproofing. But unfortunately, hundreds of thousands of vehicles are generally quiet, tire noise, wind noise will affect the driving experience.

Therefore, for this kind of people, the beauty industry has also developed a sound insulation business, which is generally divided into 4 types of sound insulation, 4 wheel sound insulation and chassis sound insulation.

Which is more effective, four-wheel sound insulation or chassis sound insulation? It can only be said that they are complementary.

What is the process of four-wheel sound insulation? First, drop the four wheels and remove the arc lining to reveal the sheet metal side. Then, the soundproofing material is attached to the sheet metal surface and the soundproofing cotton is placed.

Stick it to the wheel reflector and repeat it 4 times to form a simple 4-wheel sound insulation with 4 tires.

What is the process of chassis sound insulation? First, remove the main seat, passenger seat, center console, and rear seat to expose the chassis. The chassis in this case does not refer to the chassis of the car.

Rather, it refers to the open chassis. Then put on the soundproofing cotton, and then install it all, and the simple chassis soundproofing is completed. However, the sound insulation of this chassis has fatal drawbacks.

Too much disassembly and assembly may cause subsequent trouble. Because the maintenance staff of the 4S shop should know that if the operation is made and the broken things are decomposed, the possibility of the outside will increase.

Do I have an effect, you ask? Different vehicles are different. Some vehicles do improve their quietness after completion, and some vehicles do have normal sound insulation after completion.

I think it's better to have four-wheel sound insulation than chassis sound insulation.

The main noise** when the car is driving is 1, the car engine 2, the tire noise 3, and the wind noise. If you do chassis sound insulation for your car, it must not be as good as the direct noise reduction effect.

First of all, the noise parts of the four-wheel sound insulation and the chassis sound insulation are different, the four-wheel noise is mainly the wind noise of the wheel hub and tire noise, the chassis noise is mainly road noise and chassis sheet metal vibration noise, you can selectively go to a certain part of the sound insulation, or both, but I suggest that the general more formal car sound insulation modification shop will first carry out noise detection on all parts of the vehicle, so that the noise level of each part of the vehicle can be clearly detected with data, and the sound insulation can be done in a targeted manner.

Hello dear, <>

I am glad to shout for you to sell, it is not recommended to do four-wheel sound insulation because of the poor sound insulation effect, and at the same time will lead to damage to the tires, resulting in inaccurate four-wheel alignment, four-wheel sound insulation will produce greater friction when doing it, resulting in deviation of four-wheel alignment, so it is not recommended to do four-wheel sound insulation will produce huge damage. Nowadays, many small shops that do sound insulation, when doing four-wheel sound insulation, they are always pasted with shock absorbers on the fenders and wheel arches, and the medium and high frequency noise on the surface is less medium fiber, which is reflected in the tire noise when walking on a good road. But in fact, the resonant frequency of the fenders and wheel arches has been adjusted to a low frequency, and if you walk on rough roads or have fine bumps, you will find that the low frequency noise will be much louder than before!

A low-frequency boom will saturate your ears and cause even more discomfort. Zheng teased <>

Four-wheel sound insulation can be changed to reduce tire noise, shock absorption, sound insulation, sound absorption, buffering steps to do a good job, tire noise can be transmitted to the cabin. The main parts include: the bottom vertical plate, the fender, the wheel arc; The materials used are mainly shock-absorbing glue, sound-absorbing cotton and special wheel arc liners.

The curved part is made of three soundproofing materials and five layers of reinforcement.

1.Wheel arc sound insulation refers to the effect of preventing the mud and sand rolled by the wheels from splashing to the bottom of the cabin when the car is driving;

2.The damping material is used to dampen and seal the automobile sheet metal, improve the defects of the horn installation environment, and restore the sound pressure and sound quality of the car audio;

3.Through vibration damping materials and sound insulation materials to vibrate and insulate the car, the section reduces the noise transmitted by the sheet metal structure of the car and improves the driving comfort. Millions of car purchase subsidies.

Regarding the landlord's concern about "how is the sound insulation effect of the four wheels?" "Here's my personal opinion:

Of course, there is an effect, and the four-wheel double-layer sound insulation effect is very obvious:

1. Wheel arc sound insulation refers to the effect of preventing the sand and mud rolled up by the wheels from splashing to the bottom of the compartment during the driving process;

2. Vibration damping and sealing treatment of the sheet metal of the car through vibration damping materials, improving the defects of the speaker installation environment, and restoring the sound pressure and sound quality effect of the car audio;

3. Vibration damping and sound insulation treatment are carried out on the car through vibration damping materials and sound insulation materials to reduce the noise transmitted by the automobile sheet metal structure and improve driving comfort;

Of course it works, but it's not obvious. At present, the floor of the new car after leaving the factory has basically been treated with a layer of original vibration damping materials in some positions, that is to say, the manufacturer realizes that the noise of small and medium-sized cars is a big problem, so some vibration points of the floor are dampened before leaving the factory, but in order to achieve a good sound insulation effect, this vibration reduction does not play a big role at all, so the floor must be further soundproofed. a .

Low-frequency noise, engine noise, and tire noise show strong penetration through the car floor, which is the most important manifestation of automobile noise and the main reason for affecting the driving comfort of the car. b .Vibration deformation, low-frequency vibration is very destructive, is the main cause of automotive floor sheet metal fatigue.

c .Leakage, noise, heat, exhaust gas, and dust will pour into the cab through the holes in the car floor, increasing the noise and energy consumption of the car, deteriorating the air in the car, and seriously affecting the driving comfort of the car. d .

Dry heat consumes energy, and the car floor is the main way for heat from the engine calorimeter exhaust pipe to be conducted to the cab. If it is not controlled, it will consume a lot of energy efficiency air. Sound insulation of car floors:

If anti-vibration tape and sound-insulating cotton are applied to the car floor, any vibration will be effectively attracted, and a large amount of heat will also be effectively blocked. The construction of the car floor focuses on solving the noise of the engine and road chassis, which not only effectively isolates low-frequency noise, but also greatly reduces the heat conduction of the engine and exhaust pipe to the cab. Only Xingchang.

Millions of car purchase subsidies.

Evaluating the performance of a car not only depends on the performance of the car engine, the chassis of the car, and the external sound insulation of the transmission is also a crucial specification. The sound insulation of a car is very poor, and it not only makes people upset when driving safely for a long time, but also makes their own vehicles feel that they are not that "high". At present, there are not a few vehicles on the market that collapse in the factory, such as poor sound insulation, so many car enthusiasts will choose to do four-wheel sound insulation in the middle and late stages to improve the actual effect of sound insulation, but a few people find that the tire noise has become louder after doing it.

This kind of situation is possible, the first and most important point is the engineering construction of the processing technology and the selection of materials, if the construction technology is very poor or the selection of materials themselves has any problems, the actual effect is undoubtedly unsatisfactory, at the same time, if the exercise of the sound insulation cotton off will make the tire for a long time and the sound insulation cotton friction, which will also lead to a significant expansion of tire noise. The second four rounds of sound insulation are as effective as everyone imagined.

The best way to deal with tire noise is to replace the silent tire, and every well-known brand releases a series of silent tire. Compared with ordinary tires, the silent effect of silent tires is much better. At the same time, if you choose a run-flat tire, it will also cause more significant tire noise.

If the actual effect is still limited after removing and replacing the silent tire, it is necessary to consider improving the sound insulation cotton for the spare tire of the vehicle. Many vehicles are not equipped with soundproof cotton in the spare tire trough, which is also the highest noise level for some car series.

Millions of car purchase subsidies.