Which of the two is better, four wheel sound insulation or chassis sound insulation?

Cars are now very extensive, with the increase in car ownership, customer requirements will gradually increase, and the car beauty industry also has a sales market. Although many people don't have a lot of money to buy a good car, everyone expects their car to be better, at least in the eyes of others.

Therefore, in the eyes of others, the most important thing is the feeling of safe driving. One of the key elements of a safe driving experience is the sound insulation and quietness of the car. However, the disadvantage is that hundreds of thousands of vehicles are not very quiet, and wind noise and car noise will endanger the safe driving experience.

Therefore, for this group, the beauty industry has also developed soundproof business processes.

Generally, it is divided into four-door sound insulation, four-wheel sound insulation and chassis sound insulation.

You need to tell me which one is very good, the four-wheel sound insulation or the chassis sound insulation, and I can only say that it is closely related.

What is the process of four-wheel sound insulation?

Well? First of all, we have to do the four wheels, disassemble the wheel arc jaw, and expose the sheet metal surface. Subsequently, the soundproofing raw material is pasted on the surface of the sheet metal parts, and the soundproofing cotton is applied.

Glued to the top of the wheel arc jaw and repeated four times, thanks to the four tires, the simple four-wheel sound insulation was completed.

What is the process of chassis sound insulation? First of all, we have to disassemble the main driver's seat, the front seat, the center console road, and the rear seat to expose the chassis. At this time, the meaning of chassis is not that of a car chassis.

Just drive the chassis safely. Then glue in the soundproofing cotton, and then put everything on, and the simple chassis soundproofing is completed. However, there is a fatal flaw in the sound insulation of this chassis, that is, there are too many items to disassemble, which is likely to cause inconvenience afterwards. As you have to understand, car 4S shop.

Equipment maintenance workers will operate incorrectly and disassemble and eat bad stomachs.

The probability on the outside is even greater.

Do you need to tell me if it's done? Varies from car to car. Some cars have improved their sound insulation and quietness a lot after they have been made, and some cars have been soundproofed or average after they have been made. Moreover, the actual effect of sound insulation is also very related to the sound insulation material.

The chassis is better soundproofed. Because the chassis sound insulation has included the sound insulation of the bottom 4 wheels, and the four-wheel sound insulation is only the sound insulation of the 4 wheels, in comparison, the chassis sound insulation has a larger range than the 4 wheels sound insulation, so the effect is better.

Four-wheel sound insulation and noise reduction can effectively reduce road noise, tire noise, blocking and absorbing noise transmission during driving; Chassis sound insulation and noise reduction can suppress a large number of resonances generated by the large-plane sheet metal in the process of driving! Blocks and absorbs noise from underneath the site. They don't handle the same amount of noise**, so it's impossible to compare which part of the sound insulation is better.

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;

Is there any effect on car chassis sound insulation? Sound insulation of the car chassis is effective, but the effect is not very obvious. Advantages of sound insulation installed on the chassis of the car:

The sound insulation of the automobile chassis is mainly aimed at the road noise caused by the friction between the tire and the ground, which can minimize the road noise caused by the friction between the tire and the ground, and has a great effect on the driving safety of the owner; If the chassis of the car is affixed with anti-vibration tape and sound-insulating cotton, any vibration will be effectively attracted, and the heat will also be effectively blocked. Chassis sound insulation method: Chassis sound insulation modification can make a layer of chassis armor from the outside of the chassis.

The chassis armor is a layer of elastic sealing material, which can act as sound insulation and noise reduction from the outside. The sound insulation material of the car chassis can be smooth sound-absorbing cotton or 10mm linen sound-absorbing cotton, combined with aluminum foil soundproofing and vibration-absorbing panels. Next, measure the noise level of each part of the car and remove the interior.

Pay attention to disassembly techniques and do not use brute force to avoid damaging the interior and paint. Then, clean the chassis. Pay attention to the orientation when handling attachments, prevent scratching the work panel and surface paint layer, and avoid using corrosive solvents.

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.

How well is the chassis soundproofed? Automobile chassis installation sound insulation is still effective, and car installation chassis sound insulation has the following benefits:

1. The sound insulation of automobile chassis is mainly aimed at the road noise caused by the friction between the tire and the ground, which can minimize the road noise caused by the friction between the tire and the ground, and has a great effect on the driving safety of the owner;

2. The chassis is pasted with anti-vibration rubber strips and soundproof cotton, and any vibration will be effectively attracted, and the heat will also be effectively blocked;

3. The construction of the chassis is to focus on solving the noise of the engine and road chassis, which not only effectively isolates the low-frequency noise, but also greatly reduces the conduction of heat from the engine and exhaust pipe to the cab.