What are the issues that need to be paid attention to when designing soundproof doors?

When designing and manufacturing the sound insulation cover, the following four requirements should be considered: the cover wall of the sound insulation cover should have sufficient sound insulation to isolate the transmission of air sound, and at the same time reduce the reverberation sound in the cover and prevent the transmission of solid sound. Minimize openings in the cover wall; For the necessary opening, the opening area should be as small as possible; In the gap between the components of the cover wall, sealing measures should be taken to reduce sound leakage.

The holes and gaps of the sound insulation cover have a significant impact on its noise reduction effect, especially high-frequency noise, and the leakage area accounts forThe maximum noise reduction for 1% of acoustic enclosures is dB respectively. Due to the heat dissipation of the sound source machine equipment in the hood, the temperature in the hood may rise, and appropriate ventilation and heat dissipation measures should be taken for this.

It is necessary to consider the requirements for the convenience of operation and maintenance of sound source machinery and equipment. For example, access doors, observation windows, hand holes, movable covers, or removable, assembleable enclosures are set up to allow access to the machine, observe the operation and maintenance of the machine. Ideal noise reduction values can only be achieved if a well-designed, fully enclosed acoustic enclosure is installed with vibration isolation supports, with no or no holes to install the muffler, and with properly sealed acoustic doors.

Key points of soundproof door production: When making soundproof doors, ultra-fine glass wool silk or rock wool should be filled in the core of the door leaf, but it should not be squeezed densely, and it should be kept in a soft state to ensure its sound insulation effect. The gap between the door leaf and the door frame should be embedded in the groove on the door frame with elastic materials such as sponge rubber strips to be glued and clamped firmly.

The cross-sectional size of the sponge rubber strip should be 1mm larger than the width of the groove on the door frame, and protrude 2mm above the frame edge to ensure that the gap can be squeezed tightly after the door leaf is closed. The lap seam of the door leaf of the double soundproof door should be made into a double L-shaped seam. In the middle of the lap seam, a sponge rubber strip should be set.

When the door is closed, the sponge rubber strip will be squeezed tightly on both sides of the lap joint, and a gap of 2mm wide should be left between the door leaves, and the wood should not be in direct contact with the wood at the joint. Outer soundproof doors should be wrapped with artificial leather.

The rock wool blanket should be filled between the artificial leather and the wooden door leaf, and then the double-layer artificial leather strip should be regularly pressed on the surface of the door leaf, and then nailed it firmly with foam nails, and the surface of the artificial leather should be wrapped tightly and flattened. A gap of 5mm wide should be left between the bottom of the soundproof door leaf and the ground, and then the 3mm thick rubber strip should be nailed to the lower part of the door leaf with a long flat iron, and the rubber strip in contact with the ground should be extended by 5mm to close the gap between the door leaf and the ground. There are waterproof requirements for soundproof and fireproof doors, the door leaf can be made of refractory fiberboard, with a 5mm thick asbestos board nailed on both sides, and then full of No. 26 galvanized iron sheet, and the exposed door frame part should also be wrapped with galvanized iron sheet.

The hardware of the soundproof door should be adapted to the function of the soundproof door, such as the hinge should be silent. Filler soundproof door: fill the core of the door with glass wool silk or rock wool, and seal the crack of the door with a sponge rubber strip.

Outer soundproof door: wrap a layer of artificial leather outside the ordinary wooden door leaf, fill the artificial leather with rock wool, and nail the long artificial leather strip with bubble nails, and glue the gaps around it with sponge rubber strips. Soundproof fire doors:

The wooden frame of the door is filled with sound-absorbing materials such as rock wool, and the exterior is inlaid with asbestos board, galvanized iron sheet and refractory fiberboard, and the surrounding gaps are firmly sealed with sponge rubber strips.

The generally recommended soundproof door is generally filled with sound-absorbing cotton or PU inside, and some are only separated by cardboard into the so-called honeycomb structure, which increases the strength of the door panel on the one hand, and on the other hand, it forms a certain degree of sound insulation with the closed air layer it forms. Basically, any material has its sound insulation effect, and simply put, the heavier the quality of the object, the better the sound insulation, this is the general quality law, that is to say, in order to achieve the sound insulation effect, you can use 100px thick rigid plate as the door panel or pour cement in the door panel to improve the quality in order to achieve a higher sound insulation effect, but the sound insulation effect has reached but the weight of the door panel will indeed increase the burden of the door hinge, if the hinge can not be fully loaded, it will cause the door leaf to be easily opened and closed and even cause damage to the hinge, so unless necessaryWhen designing the partition door, the weight will be as much as possible to achieve the required sound insulation effect.

The best ways to insulate doors are by using sealant strips, soundproofing cotton, cardboard, installing interior doors, and replacing doors.

1. Use seals.

Due to the need for door activity and the nature of the material, no matter how carefully installed the door and door frame will leave a gap, so that it is not completely sealed, and noise will penetrate into the room from this gap. Therefore, the size of the gap can be measured in advance, and the corresponding sealing strip can be purchased according to the measured size, and pasted on the gap to achieve the effect of sound insulation.

2. Use soundproof cotton.

The vibration of an object produces a sound, and the sound travels through the air. Cotton has a multi-fiber structure, and when sound passes through cotton, it is reflected by countless fibers, superimposed on each other, and collided. The energy of the sound waves is converted into heat, which weakens the intensity and eventually disappears.

The sound insulation function of sound insulation cotton is related to the material fiber and open space structure, it can be said that the real sound insulation effect of sound insulation cotton is sound absorption, so that sound waves are consumed inside, which is different from high-density sound insulation materials, which are soundproofed by reflecting sound waves. The size data of the door can be measured, and the soundproof cotton can be pasted on the door surface, so as to achieve the maximum effect of sound insulation and noise reduction.

3. Use cardboard.

Dividing the cardboard into a honeycomb-like structure and filling it into the door panel has two advantages, on the one hand, it increases the strength of the door panel and is not easy to go wrong. On the other hand, the closed air layer formed by the honeycomb structure can play a certain degree of sound insulation, which can greatly reduce the penetration of sound.

4. Install the inner door.

The installation of the inner door is actually to add a double layer of protection at the sound insulation level, and the effect is also better. In other words, by installing the inner door inside the outer door, the sound insulation effect of the two doors is actually better, although it is time-consuming and labor-intensive, but it can reduce the noise.

5. Change the door.

You can directly change to a soundproof door. The soundproofing of the door is related to the thickness. The denser the wood, the heavier the weight; The door will also be thicker, so the thicker the door, the better the sound insulation.

But it should be noted that the thickness between 40-50mm is optimal, once it exceeds 50mm, it will have high requirements for the hardware of the door.

Noise is formed by the refraction of sound from smooth objects after it reaches the room. In order to make the noise less easy to spread, choosing a patterned door is also a way to reduce the noise.

The door is a more important facility to separate the sound from the outside world, and the quality of the door will affect the sound insulation ability. However, not all doors can have a good sound insulation effect, but sometimes it is impossible to replace the door, so it is necessary to adopt some measures to enhance the sound insulation effect of the door. Let me share how to enhance the sound insulation of the door.

1. There are many ways to enhance the sound insulation effect of the door, and one of the main reasons for the poor sound insulation effect of the door is that the gap between the doors is too large. Because there is nothing to cover this gap, it is easy for sound to reach our homes through this gap. Therefore, the best way to solve this problem is to seal these gaps, and you can use some sealing strips to fill the gaps, which is also more convenient.

2. You can use some soundproof cotton to stick to the back of the whole door, and the soundproof effect of the soundproof cotton itself is also very good, and the operation is also very easy.

3. I believe that many people will have some cardboard boxes that do not need to be used at home, and if you carefully observe the cardboard of these cartons, you will find that there is a curved wavy structure in the cardboard, which can also play a certain sound insulation effect. Filling the door with cardboard can also reduce noise.

If you are not afraid of trouble, you can install another door inside the door, and the sound insulation effect of the two doors will naturally double the effect.

The soundproof room is more special in the decoration design and needs to be specially treated, so let's talk about the precautions for the design of the soundproof room.

1. The sound insulation screen for indoor application should consider the indoor sound absorption and bird treatment. When the sound absorption coefficient of the indoor wall and ceiling and the surface of the sound barrier tends to zero, the reverberant sound field is formed in the room, and the noise value of the sound insulation layer is zero. Therefore, both sides of the sound insulation screen should be treated with sound absorption.

2. It is also necessary to prevent sound leakage from the pores on the sound insulation screen, and pay attention to the sealing of the structure. If it is used outdoors, it is necessary to consider the impact of the material on the sound insulation performance due to rain protection and climate change.

3. On the bottom side or both sides of the sound insulation screen with steel strips to strengthen, for the movable sound insulation screen, you can add universal wheels on the bottom side, and you can adjust the orientation of it and the noise source of Changchang at any time to achieve the best noise reduction effect.

4. The higher the sound insulation screen, the greater the noise attenuation, so the sound insulation screen has enough height and length, and the length is generally required to be 3 5 times the height.

5. According to the actual needs, it can be made into a variety of forms, as shown in the figure below, dilateral, eaves, trilateral, double, etc. Generally, according to local conditions, an observation window can also be set up on the sound insulation screen as needed, and the sound insulation amount of the observation window is roughly similar to that of the sound insulation screen.

Hello (the best way to insulate the door) can be laid on the structural floor with a high bulk density of environmentally friendly sound-absorbing cotton static Cheng vibration damping cushion, and then make a 40mm thick concrete floor, the weighted impact sound pressure level can be less than 60db. If the walls of a room have a soundproofing characteristic of only -30db, installing a door with a soundproofing characteristic of -35db is suspected of overquality. Moreover, depending on the manufacturer of the mu chain, there is a big difference between -30db and -35db doors.

Cost is a very sensitive topic, is there some remedy available to you? If you want to improve the airtightness of the door by yourself, you can also paste some things such as adhesive strips or sponges on the door seams, because the relative mountain reduces the interval of the door frame, and the sound insulation characteristics are somewhat improved. Soundproofing of the door.

The door with the worst sound insulation in the home is in time, first of all, there are gaps around the door. Due to the fact that many doors are crudely nailed with plywood, there will still be a gap between the door and the door frame, and the sound insulation characteristics are no more than -15db. The sound insulation characteristics of the acoustic door can reach -25db -35db.

The kind of iron door used in the room with higher performance is difficult for ordinary families to use, so more and more families are now using double-layer security doors for sound insulation. To change the ordinary plywood door.

The best way to insulate a door depends on factors such as the material, thickness, and construction of the door. Here are some common ways to insulate your door:

1.Install a soundproof door: A soundproof door is a specially designed door that can effectively reduce the transmission of noise. Acoustic doors often use multiple layers of materials, such as fiberglass, polyurethane foam, etc., to fill the voids, while affixing sound insulation to the façade.

2.Installing Seals: Installing seals between doors and door frames can reduce air movement and sound transfer. Choosing a high-density sealing strip can better achieve sound insulation.

3.Install soundproof curtains: Installing heavy curtains at the door can absorb some of the sound and play a role in isolating outside noise.

4.Install acoustic panels: Installing acoustic panels inside or outside the door can effectively reduce the transmission of sound. Acoustic panels are usually made of high-density materials such as gypsum board, mineral wool board, etc.

5.Replace the door mega standby lock: If the door lock is aged or damaged, it can also lead to the transmission of noise. Replacing a high-quality door lock can reduce the transmission of noise.

It should be noted that different soundproofing methods have certain requirements for the material and structure of the door, so it is necessary to choose the appropriate method according to the actual situation. At the same time, the sound insulation effect will also be affected by other factors, such as ambient noise, the frequency of opening doors and windows, etc.

The best ways to insulate your door include:1Installing Sealed Doors:

Sealing the door can effectively prevent sound from escaping through the crack in the door, thus improving the sound insulation of the door. 2.Install soundproof door leaves:

Soundproof doors are made of materials such as multi-pin beam laminated glass, wood or metal to effectively isolate noise. 3.Install soundproof doormats:

Acoustic doormats can be placed underneath the door to effectively isolate noise from the floor. 4.Install soundproof door frames:

The soundproof door frame is made of sealing material, which can effectively isolate the gap between the door frame and the wall, and improve the sound insulation effect of the door. 5.Install a soundproof door lock:

Soundproof door locks are made of sealing materials, which can effectively isolate the gap between the door lock and the door frame, and improve the sound insulation effect of the door. 6.Installation of soundproof door baffles:

Acoustic door baffles can be placed above the door to effectively isolate noise from the ceiling.