The difference between steel soundproof door and plain steel door is as follows:
① The structural characteristics of steel soundproof doors are mostly steel doors, which are composed of mesh steel ribs placed between two panels. Most of the internal filled sound insulation materials are glass wool, and the panels are often made of cold-rolled steel plates. Because its surface is smoother than hot-rolled steel plates, some businesses also use stainless steel plates and so on. The ordinary steel door is not filled with sound insulation material.
②Due to the special structure of the steel soundproof door, its thickness and area density are higher than that of ordinary steel doors. Therefore, the supporting hardware, sealing strips and other accessories of the steel sound-proof door are particularly important, and the quality of these accessories must meet the requirements of fire prevention. The quality of the accessories of the soundproof door is an important condition that determines the sound insulation capacity and service life of the steel soundproof door.
③The composition of steel soundproof doors can be roughly classified into door frames, door leaves, (observation windows) and hardware accessories. The difference between sound insulation doors and ordinary doors lies in the sound-absorbing materials of the door leaf, door cushions and automatic bottom seals. It is these special designs that can effectively hinder the propagation of sound waves to achieve good airtightness and sound insulation. , And ordinary steel doors do not have the function of sound insulation and fire prevention.
④The level of sound insulation of steel soundproof doors is undoubtedly the most critical evaluation index. Generally, the sound insulation of steel soundproof doors of 34dB is easier to achieve. The sound insulation of more than 40dB requires special custom-made soundproof doors, and the sealing of the doors, soundproof materials, threshold structure, etc. require higher craftsmanship. The ordinary steel door does not have any sound insulation level.
⑤When ordering steel sound-proof doors, not only specify the size, sound insulation, door leaf materials, internal sound-absorbing materials, etc., of the steel sound-proof doors. Pay attention to the hardware accessories of the door. The price of the hardware of the steel sound-proof door is still very important. The price of good hardware can be said to be more expensive than the cost of the door leaf. Therefore, it is recommended that you clarify the model, quality, function and other parameters of the sound-proof door hardware accessories when ordering products from the sound-proof door manufacturers, and the hardware accessories do not need to be specified on the side of ordinary steel doors.
