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The pro wave cotton is in the soundproof cotton.
Inside works best
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Can soundproof cotton really be soundproofed? It's really unthinkable that this is what it really does.
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Soundproofing cotton is good.
The difference between the two:
1. Sound-absorbing cotton has a sound-absorbing effect, which converts sound energy into heat energy.
2. The sound will weaken and disappear after the soundproof cotton, and the sound will not continue to propagate, but will reflect the sound.
3. Soundproof cotton is a kind of soundproof material. It blocks the propagation of sound, but it tends to cause sound energy reflection and reflect the sound back.
4. Sound-absorbing cotton is a kind of man-made inorganic fiber. Quartz sand, limestone, dolomite and other natural ores are used as the main raw materials, and some chemical raw materials such as soda ash and borax are used to melt into glass. In the melting state, with the help of external force blowing into flocculent fine fibers, the fibers and fibers are three-dimensional crossing, intertwined with each other, showing many small gaps, porous, loose and breathable.
5. The sound insulation cotton has a good heat insulation effect, and after being pasted in the hood of the car, it can effectively avoid the high temperature of the engine from being transmitted directly to the hood, so as to protect the paint on the surface of the hood, and at the same time avoid the fog of the hood affecting the line of sight in rainy days.
6. Compared with the two, soundproof cotton is relatively better than sound-absorbing cotton.
Popularly explained the principle of sound insulation: The principle of sound insulation is to leave a channel for sound to enter (a channel composed of countless tiny holes connected together, or countless fibers intertwined and mixed together to form countless small gaps), but once the sound enters it, it cannot come out. Because the passage is too long, the sound drills back and forth in it, and the left and right collisions always gradually consume energy in the process, which plays a role in sound insulation.
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Hello, the function is different: Sound-absorbing cotton has a silencing effect, converting sound energy into heat energy. Soundproofing Cotton The sound will weaken and disappear after passing through the soundproofing cotton, and the sound will not continue to propagate, but it will reflect the sound.
Ask what is good for having children playing the piano at home and influencing neighbors, thank you.
Soundproof cotton so that the sound does not pass.
Question: Doesn't the echo sound sound quality?
Doesn't affect him will weaken the voice and not exactly ** back.
He returned the voice unaudible without careful listening.
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The sound-absorbing cotton effect is better.
Sound-absorbing cotton has a sound-absorbing effect, i.e., sound energy is converted into heat energy. Sound insulation does hinder the propagation of sound, but it can easily cause sound energy reflections. Good sound insulation, if our main purpose is sound insulation, is noise cancellation. At this point, sound-absorbing cotton works better.
The difference between soundproof cotton and sound-absorbing cotton:
Soundproof cotton is to directly block the sound outside the room, the same soundproof material, and sound-absorbing cotton is to convert the sound outside the room into heat, the main purpose of using these two materials is to isolate the external sound, so sound-absorbing cotton can also be regarded as a kind of soundproof cotton. The correct installation method of soundproof cotton should be to stuff the soundproof cotton inside the keel and cover it with a cover plate, of course, it can also be directly attached to the glass, but this sound insulation effect is not as strong as the effect of being installed in the keel, and it is not beautiful.
Now people use more fiberglass at home or in the office, the color is yellow, ** cheaper than quietly changing, about 20 yuan a roll. If it is used in a professional recording studio or studio, it is usually used with professional acoustic soundproofing cotton, which is very expensive, ranging from hundreds to thousands of dry lands. <>
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Nowadays, many consumers of decoration are considering the use of sound-absorbing cotton for home decoration, and how to install sound-absorbing cotton has become a problem for everyone. Sound-absorbing cotton has a superior vibrato sound absorption effect, which can be made into wall panels, ceilings, and space sound absorbers, absorbing a large amount of sound energy in the room, thereby reducing noise. Today, I will take you to see the difference between sound-absorbing cotton and sound-insulating cotton and the installation process of sound-absorbing cotton.
1. The functions of these two materials are similar, but their sound insulation principles are different. The former sound-absorbing cotton is that after the sound is discovered, the energy after the sound wave and the fiber in the material are reflected and the energy after the collision is turned into heat energy, so that the sound wave is weakened until the sound disappears.
2. The sound absorption effect of the sound-absorbing cotton is better, which can turn the sound wave into heat energy until the sound disappears. Soundproof cotton has the effect of blocking sound propagation, and it can also cause reflection. The main purpose of using this type of material is to reduce noise, and of course it is best to eliminate the sound.
3. The use of sound insulation cotton: it has the effect of waterproof and sound insulation, so it can not only reduce noise when used in the automobile chassis, but also have the effect of heat preservation and protection of car paint.
4. The sound-absorbing cotton is safe and environmentally friendly, and no glue is added in production, so no harmful gases are produced in use. However, materials like glass fiber wool and polyester fiber sound-absorbing panels are easy to chalify, which can easily lead to itching and allergies.
Steps for the installation of sound-absorbing cotton.
Commonly used tools: nails, resin glue, hammers, rivet guns.
1. Wall treatment: The preparation work is that the wall needs to be smoothed and cleaned.
2. Install the keel: the location is under the ceiling, on the ground, pay attention to the keel and the wall need to have a space of 1cm.
3. Install sound-absorbing cotton: The 1cm space between the keel and the wall is used to install soundproof cotton, and the number of soundproofing cotton is installed according to demand.
4. Keel encapsulation, the closure of the keel can be made of gypsum board, or you can choose a soundproof board, and a layer of polyester fiber sound-absorbing board is installed on the outside of the outside if conditions permit, so that the sound insulation effect is better.
Summary: It is a good choice to use sound-absorbing cotton for home decoration, and you need to choose sound-absorbing cotton or soundproof cotton according to your own needs. However, you can choose thicker materials, and the sound absorption effect is better.
Moreover, the sound-absorbing cotton is flame retardant and non-flame retardant, so you must ask clearly to avoid purchasing mistakes.
Sound insulation cotton glue sound insulation material self-spraying glue has.
There is, it is better than nothing, but it is not very useful, after all, NVH is a system engineering, and it has to be studied according to the model, not just paste the shock absorber and sound insulation cotton, however, the four-door shock absorber plate and sound insulation cotton have a great effect on the sound.
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