Do you know what the door of the material is soundproofed?
Although the government has taken a number of measures to rectify the city's noise pollution, to some extent alleviate the problem of noise, but some people are not satisfied with the noise in life. Seeking a relatively quiet living environment, which kind of door sound effect is good? What is the sound insulation effect? And other topics by many people concerned about.
Each door has a certain sound insulation, but the effect is very different. In addition to the door closed after the sealing, door quality is also very important, the door of the sound insulation depends mainly on the door core fillers. In general, the molded sound insulation door is filled with a honeycomb-shaped paper base, which forms a closed air layer can play a very good sound insulation. And poor quality of the door, but in the hollow with a cardboard rough to play a few cut off, the sound insulation is very poor. In addition, the core using the particle board door sound insulation better performance. For solid wood doors and solid wood composite doors, the higher the density of the wood itself, the heavier the weight, the door thick door better sound insulation effect.
What kind of door noise is good?
In accordance with the relevant provisions of the state, the room door sound insulation effect to reach 22 to 25 dB. From the room door to use the material, the solid wood doors and solid wood composite door sound insulation than paint-free doors, steel doors, molded doors and so much better. From the door of the different, T-type door (German-style door) than the traditional flat door sound insulation effect is good.
For solid wood doors and solid wood composite doors, the sound insulation depends mainly on the door in the filler. Usually, the wooden door is filled with honeycomb structure of the paper-based, sound effects in general, the best is the use of particleboard particle core, noise effects can reach 32 dB. In addition, the wood density is high, the weight of Shen, the door thick wooden doors, have a good sound insulation performance.
The insulation effect of the steel door depends on the thickness and type of the glass, the glass door of the double glass door, the best soundproof effect of the double-layer hollow glass door, and the partition between the bedroom and the study room and the living room. Even if the sound quality of the sound barrier, but also need to install tightly, poor installation will also affect the sound insulation. It is therefore recommended that professionals install doors and doors.
What is the door sound effect?
1, all solid wood doors
Solid wood doors are made of natural logs do core, through the boring treatment, processing made. High-grade solid wood doors are mostly valuable wood. Price due
Its wood materials, textures and other differences and differences, one of the high-grade solid wood walnut, cherry, sand, rosewood, pure solid wood doors on the manufacturing process requires a higher demand for dehydration degreasing disposal, Or easy to deformation, cracking, so to choose the strength of the big manufacturers products. There is a solid wood door, although the information is full of wood, but then to do the skeleton of solid wood to wood core board, fiberboard door core, the surface paste high veneer, adhere to the style of solid wood doors, the price is relatively low, but Once damp, easily degumming, cracking, mildew.
2, solid wood composite doors
Composite information of a wide range of doors, it is made of solid wood to do within the framework or paste, high-density fiber panels may be affixed to the MDF, particleboard and others
Work composition information, the final appearance and then affixed with wood and color of paper or PVC made of film. Composite doors of the diverse shapes, rich style, the price is cheaper, compared to the pursuit of fashionable young people like. However, some of the products because of the use of glue and wood disposal, but off, impatient, prone to pollution.
3, molded doors
Molded wooden doors as a composite door, because the price is more affordable than the solid wood, and safe and convenient, and then loved by the popular family.
Molded wooden doors are made of two pieces of high-density fiber molded and simulated wood grain molded leather plate by mechanical repression. With moisture, expansion coefficient is small, anti-deformation characteristics, the use of a period of time, will not show the appearance of cracking and oxidation discoloration and other scenes. Ordinary composite molded wooden doors are neutral white primer when delivered, consumers can go home after the white neutral primer based on personal hobby and then color, meet the needs of the consumer characteristics. Compared to handmade solid wood doors, molded doors are mechanized, so their capital is low. Because the door is hollow, natural sound insulation results relative to the solid wood door is also worse. There is also a problem worth noting that there is a problem
It is the release of harmful gases can form indoor pollution.
How to detect the sound insulation of the doors?
1, look at weight. Sound insulation formula and the density of the material has a direct relationship, so the density of the sound is relatively good, the molding door is relatively light, which is the root of the door noise is not good. But note: flat hollow door in the middle of the noise will be more noise than the solid wood doors.
2, to see the thickness of wood panels. The thicker the surface layer, the better the sound insulation. General wooden door panels should be used 8mm thick. Surface layer thickness at the same time the better flatness, but the cost will increase. But: iron plate fire door surface metal 3mm thick, sound insulation is also good.
3, see the flatness of the wooden door. The more flat the door, the better with the combination of the door, regardless of what structure. As long as the deformation of the wooden door sound is certainly not, air leakage.
4, there is a little professional point, the door with the wall between the expansion of the quality of glue, which is not good, then it will seriously affect the sound insulation.
Note: In fact, doors and windows of the noise with the fire door is the same as the national level, rather than a single definition of a certain content. The concept of "noise" and "sound absorption". The principle of sound insulation depends on the quality or the density of the material (in the unit area when the overall weight of the iron door is less than the wooden door when it is not as good as the wooden doors), and the sound depends on the material surface area and uneven surface Space (rock wool, mineral wool, and foam are sound absorbing materials rather than soundproofing).
What is the sound insulation effect?
First, let's take a look at what is soundproof material.
Sound insulation material refers to the sound or noise and vibration sound, isolated, cut off, separate materials. Because people live in a lot of places have a certain degree of noise and affect the normal life, it must have sound insulation materials to maintain people's normal life.
Classification of sound insulation materials
There are many kinds of sound insulation materials, the general people are common: building insulation materials, KTV sound insulation materials, decoration sound insulation materials, noise damping materials, shock absorber materials, sound-absorbing decorative materials, decorative sound-absorbing cotton, noise board, noise Wait.
Common specifications Thickness: 2.0mm type sound insulation material, 4.0mm type sound insulation material, 1.2 type sound insulation material and so on.
How to choose home sound insulation material?
At present, high-rise towers generally use lightweight partition wall, the corresponding problem is the wall of the noise reduction function. People have tried remedies, such as sound-absorbing cotton and gypsum board to do a partition, but the effect is very bad. The basic solution or the use of professional sound insulation materials, noise insulation materials can be used sound insulation blankets, thick curtains, sound-absorbing cotton, wallpaper, etc., in the decoration process, you can also install the noise doors and windows, and furniture, accessories and other small places Move some small surgery, also can achieve the effect of eliminating noise.
Wooden furniture has the characteristics of fiber porosity, can absorb noise. At the same time, should also be appropriate to purchase furniture, furniture, too little will make the sound resonance in the room roundabout, increase noise.
Fabric decoration cloth also has a good sound-absorbing effect, drape and tiled fabric, the sound-absorbing effect and the effect is the same, such as curtains, carpets, etc., of which the curtains of the most obvious role. Both sound-absorbing, but also a very good decorative effect, is a good choice.
Head of the sound solution is actually very simple, that is, with a special sound insulation material to do a special noise ceiling. In general, the ceiling is also the best sound absorption and diffusion both, of course, you have to do the ceiling budget into the decoration cost of housing decoration. Otherwise, the ceiling is just one or two thousand. But you can use the light steel frame plus the method of cement board, which is the most simple ceiling treatment, but also the most economical treatment, generally up to that is a thousand dollars.
Sound insulation material features
Soundproof material varied, daily people are more common with solid brick, reinforced concrete walls, wood, gypsum board, iron, sound insulation felt, fiberboard and so on.
Strictly speaking, almost all of the material has a noise effect, the difference is that the size of different materials, the size of the interval is different. The same material, due to different surface density, the sound volume there is a relatively large change.
The volume of sound to follow the principle of quality law, that is, the greater the density of the unit density of the material density, the greater the volume, the density and the volume is proportional to the relationship.
Experts advise: sound insulation material in a certain degree of flexibility, when the sound waves incident excitation vibration in the compartment within the spread. When the acoustic wave is not perpendicular to the incident, but with the interval of an angle θ incident, the acoustic wave front to reach the surface of the barrier, and the first layer of the acoustic wave to stimulate the bending vibration along the compartment transverse propagation, if the bending wave Propagation speed and air in the sound waves gradually reach the surface of the surface of the same speed, the sound waves will strengthen the bending wave vibration, the phenomenon that the anastomosis effect. At this time the bending wave vibration is particularly large, and to the other side of the air radiation energy is also particularly large, thereby reducing the sound insulation effect.
