Sinfei
Sinfei
Xinfei sound insulation window is a new sound insulation window jointly developed by Beijing Xinfei Qingda Architectural Acoustics Technology Co., Ltd. and the Architectural Physics Laboratory of the School of Architecture of Tsinghua University for medium and low frequency noise. It has obtained six national patents (four new models, Two inventions) can effectively isolate various medium and low frequency noises, and is widely used in industrial noise-hard noise environments such as railways, roads, airports, fan pump rooms, power plants, etc., as well as broadcast rooms and recordings with high requirements for indoor sound environments. Used in professional places such as rooms and have good sound insulation performance. Main features: The overall sound insulation is high, and the medium and low frequency sound insulation performance is good: the single-layer sound insulation window is 49dB, the low frequency sound insulation is 32dB, and the high sound insulation civil sound insulation window technology has been successfully developed, which can reduce noise pollution and improve residents' living conditions. Conditions laid the material foundation. Solve the low-frequency resonance trough phenomenon common in ordinary hollow glass: the main defects of the hollow glass used in ordinary sound insulation windows are the low-frequency resonance trough and high-frequency anastomosis trough that causes sound leakage and affects its sound insulation effect, but urban noise Pollution is mainly road traffic noise, such as road, railway, airport noise, etc. The noise energy is mainly at low frequencies. The sound insulation capacity of ordinary insulating glass at low frequencies is less than 20dB. The low frequency noise penetration ability is extremely strong, and it cannot isolate the penetration of such sound waves at all. through.
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