铸造车间和锻压车间中,很多设备是以压缩空气作为动力的.这些气动设备具有排气压力较高、量大、速度高的特点.因此,在工作时产生极强的噪声级,平均超过100分贝(A),最高可达130分贝(A),是主要噪声源之一.另外,各种机械压力机的气动摩擦离合器,其排气噪声也达110分贝(A).虽然这些设备每次排气时间很短,但排气却很多,加上其他设备产生的噪声,使铸造车间和锻压车间成为连续的高强度噪声的工作场所,这对工人健康的危害是很大的.因此,治理这种排气噪声是非常必要和迫切的. Many foundry and forging shops are powered by compressed air, which have the characteristics of high exhaust pressure, high volume and high speed, resulting in extremely high noise levels at work that average over 100 Decibels (A), up to 130 decibels (A), is one of the main sources of noise, and the aerodynamic friction clutches of various mechanical presses have an exhaust noise of 110 decibels (A) Exhausting time is very short, but the exhaust is a lot, coupled with the noise generated by other equipment, the casting shop and forging shop into a continuous high-intensity noise workplace, which is a great harm to the health of workers.Therefore, governance This exhaust noise is very necessary and urgent.