The purpose of soundproof windows is to insulate sound, and the sound insulation is divided into three types of noise: medium, high and low frequency.
High frequency: horn sound, whistle sound, as long as it is penetrating and can make our eardrums feel tingling, it is high frequency, this kind of sound is very difficult to isolate, it is designed to penetrate, so that you can hear this warning sound.
Intermediate frequency: the sound of the aircraft attenuated from high frequencies, the sound of a car engine, the sound of breaking wind, the human voice, the sound of an acoustic sound, the sound of a musical instrument.
Low frequency: car tire noise, engine noise.
This is currently the highest market share, because of its simple, mature, low-cost characteristics, so it has become the favorite of merchants, the so-called soundproof glass. But in fact, insulating glass is used for heat insulation. Sound insulation can also be isolated, as long as the window frame has a strong seal, ordinary human voices can be isolated, and it can't be isolated if the noise is a little bigger. I also emphasize that why insulating glass is tempered, because it is essentially a single glass, and the thickness and strength of a single glass monolithic glass are not enough, and it needs to be tempered, and it is not that tempering must be very good, because tempering is also a piece of 8 yuan tempering fee.
Because laminated glass, many people know that it has a good sound insulation effect, but pure laminated glass is used on broken bridge aluminum and aluminum alloy window frames, because laminated glass is too heavy! Therefore, the general broken bridge aluminum and aluminum alloy are not of good quality can not bear, and due to the high cost of laminated glass, the combination of hollow + laminated glass is used. The sound insulation effect is not bad, but because the hollow hollow layer will have air resonance, it affects the sound insulation effect of PVB laminated glass, so it is generally separated from a voice, and the medium frequency can have a good sound insulation effect, and it is not recommended to use it in a noise environment above 70 decibels, or a noisy environment with low frequency.
We don't talk about this, because it has a very short lifespan, and vacuum glass is not an absolute vacuum, it is just a reinforced version of insulating glass.
Laminated glass is divided into several types, generally commonly used is PVB laminated glass, and there are also so-called Dev glass. But for now, it is reliable to do PVB laminated glass because of its life. PVB laminated glass is divided into 2 processes, dry clamping and wet clamping. Dry clamping is to put the glass laminated into a high-temperature kettle, and the high-temperature and high-pressure hot melting. Wet clipping is a layer of glue poured into the middle of two layers of glass and dried in the sun. I recommend doing dry clipping, because wet clamping is more likely to yellow and blister, and dry clamping basically does not have a problem for 50 years.
Whether it is high, medium or low frequency, it has a very strong sound insulation effect! Don't listen to people flickering high frequency, it can't be isolated, it can be separated from any sound, and its nickname is safety glass.
This black is the partition bridge, with a piece of nylon to connect the two layers of aluminum, this black material is generally qualified products are made of nylon, because nylon is durable, not easy to age. Some people also use PVC plastic, because of the low cost, the consequence of this is that it is easy to age and deform. In terms of aluminum, it is divided into pure aluminum ingots and ** aluminum ingots, but this is not divided by general buyers, so don't say too much.
The broken bridge aluminum window frame is divided into many series, what series, the series has nothing to do with the quality, and it has nothing to do with the sound insulation effect. This refers to the width of the profile, the quality of the general broken bridge aluminum depends on the thickness of the profile, the broken bridge aluminum partition bridge material, the general door is used 20 of aluminum, 1 for windows4 or 16。
In terms of sound insulation effect, the sound insulation effect of broken bridge aluminum is good, the use of casement windows, with customized EPDM sealing strips, if you can achieve super sealing, its sound insulation effect will not be inferior to the plastic steel window frame. It is best not to do push-pull for broken bridge aluminum, because the sealing of the sliding window of broken bridge aluminum is very poor.
At present, there is also a kind of sliding casement window sealing on the market, and the casement window is pushed out out, or pulled in inside, that is, the casement window. The sliding window is the left and right sliding. But it realizes the sliding window opening method, and also realizes the casement window handle sealing method, but this aluminum is currently being done by small manufacturers, the quality of aluminum is not very good, and it is extremely easy to wear, not very durable, you can consider it if you have money, this is called drift window, this is good.
I don't need to say more about this, your developer pre-installed you is this, the sealing of this pre-installed casement window is not very good, especially low-end aluminum. But the same quality of broken bridge aluminum and aluminum alloy, in fact, the difference of 100-200 yuan a square, the difference between broken bridge aluminum and aluminum alloy is not so big, the same series, the actual cost difference of their materials is only 150, labor costs, broken bridge aluminum is a little troublesome, so the general price difference is 200 yuan. Therefore, the price difference is not big, but the sound insulation effect of aluminum alloy is about 5 decibel points worse than that of broken bridge aluminum, if the noise environment is above 70 decibels, try to use broken bridge aluminum, because aluminum alloy is a pure metal, it will resonate with the sound waves in the environment.
In terms of quality, I still talk about 1 point, don't talk to me about the 88 series or the 118 series, I just want to know what is the thickness of the aluminum of the window, purified aluminum or ** aluminum, is it fluorocarbon painting or powder coating, or electroplating? Generally speaking, powder coating is good because it is durable.
Plastic steel, as the name suggests, is plastic on the outside and steel on the inside. Casement windows have strong sealing, because they are plastic, so they will not resonate with sound waves, and are excellent soundproof door and window frame materials, and sliding windows can also achieve strong sealing. At present, many people use plastic steel frame to make frame materials for soundproof doors and windows, this profile has a disadvantage, there are many plastic steel, it is not steel, or put 08 of steel, the general minimum requirement is 12 thickness, less than 12 windows will be easily deformed.
It has several problems:
1.Generally, we use conch plastic steel in China, but there are many fakes of conch plastic steel.
2.Conch plastic steel is divided into three grades of ABC, and there are many people who use C on the market, which is easy to yellow and brittle.
3.The appearance of conch plastic steel is not as good-looking as broken bridge aluminum, and the outward opening window of conch plastic steel is very difficult to close.
If the merchant you are looking for is using conch plastic steel grade A, use 12 more steel, then no problem, can be done.
We talked about the types of glass, the types of window frames, and the types of noise, and you probably have a spectrum in mind, if you still don't know how to combine, then I'll give you an example of the popular window combinations on the market:
This kind of general has an ultra-low unit price, three or four hundred and one square meters, you just treat it as useless, the wind can't be blocked, the sound insulation can't be insulated, and the heat insulation is very poor.
Aluminum alloy casement windows, the general quality is good, ** have gone to 600 up, this kind of sealing wind effect is good, the insulation effect is also good, and the sound insulation effect is very general.
This kind of ** generally goes up at 700, the quality is very uneven, and the gap is very outrageous, from 600-2000.
This kind of is generally in contact with sound insulation, generally made casement windows and has a certain degree of sealing, and the sound insulation effect will be better than the previous ones.
Professionally do sound insulation, and the sound insulation effect is generally very good. But the moisture is also very large, and the reason I said earlier, go back and see for yourself.
You must want to ask**, I'm really sorry for this, **depending on the window type and material, such as inward opening and pouring + double yarn integration, such as inward opening and inverting, such as heavy-duty doors, such as window screen integration + anti-theft net, the more functions, the higher the price difference, sometimes just simply add a function, you will find that a square is more expensive than 500 yuan. **The difference is too large. In my hometown, the single glass of the sliding window is only 200 square meters, and I have to go to 1500 square meters to buy the inverted broken bridge aluminum myself. This difference is really huge.
Sliding windows, the sealing effect is the worst, but in terms of use, if the soundproof doors and windows are to use the sliding window type, it is best to use a plastic steel frame to ensure the sound insulation effect.
Casement windows, divided into inside and outside, the sound insulation effect is better, and the window type is recommended for soundproof windows.
Externally hung windows, the sound insulation effect is also good, worse than the inner casement window, stronger than the sliding window.
Publish a collection of dragon cards to share millions of cash inward opening and inverting window type, and at the same time realize the two functions of inward opening and inverting, and outward opening and downhanging, and the sound insulation effect is similar to that of external suspension.
There are three main points that determine the sound insulation effect of soundproof doors and windows: sealing, glass material, and profile.
For example, if my house is on the 10th-30th floor, and there is highway noise, what kind of windows do I install?
Casement window type with 5+076+8+0.76+5 PVB laminated glass, frame with Feng Aluminum 70 series 20 profiles.
For example, my house is on the 5th-20th floor, the downstairs is the main road, and there are more buses and cars, so what windows should I install?
Casement window type with 6+076+10+0.76+6 PVB laminated glass, frame with Feng Aluminum 70 series 20 profiles.
For example, I live on the 6th-10th floor at home, the downstairs is a national highway, all kinds of heavy trucks, large trucks, and even 300 meters away from me There is a moving iron, and there is 80-85 decibels of noise outside, and it is deafening when I walk out of the door, so what windows will I install?
Oh, how could I be stupid enough to buy a house like this? Depending on the situation, generally I will use an inward window to match 5+076+8+0.76+8+0.76+5 four-layer PVB laminated glass, frame with Feng Aluminum 70 series 20 profiles.
All of the above is based on the condition that the window frame and wall are well sealed and the D-type EPDM sealing strip is used. In terms of hardware accessories, because the PVB laminated glass I use is very heavy, I will choose some imported hardware accessories.
Soundproof windows are generally isolated from 40 decibels of noise, but you can't say 65 outdoors, you have to isolate to 20, and the noise meter can't detect it. Generally, the indoor peak of 40 is quiet and can be qualified.
To do soundproof windows, you have to ask the merchant, do you promise the peak decibel or the average decibel, the average decibel I can generally do 30, the contract promises 35 peak decibels. You raise it by 5 decibels by my standards, it's okay to have 40, and it's quiet.