Noise reduction in units for pneumatic weaving of complex fibres

摘要

A method of designing the soundproofing jacket for mechanisms for pneumatic weaving of complex fibres as a nonhermetic screen with process openings is confirme by the results of experimental studies.The design of the soundproofing jacket with a coating of VD-17-58 vibration-damping mastic allowed reducing the sound pressure level by 14-15 dB(sound level by 5-6 dBA).The sound-absorbing alyer of synthetic carpet decreases the noise by an additional 8-10 dB,and incorporation of additional polyurethane foam sound absorbers allowed reducing the noise level to the health standards.