论文部分内容阅读
在锻压机械、铸造机械、标准件制造行业中,气动元件愈来愈得到广泛的运用。而气动元件中,特别是一些控制阀和某些执行机构在动作时,压缩空气瞬时排气噪声可达120dB(A)左右,此外在气缸吊,风动砂轮,气动摩擦离合器等机械中,亦有此类喷气噪声。虽然这些设备每次排气时间很短,但排气频繁,设备较多,对工人身体有一定的危害,因此治理这种喷气排气噪声是非常必要和迫切的。
In forging machinery, casting machinery, standard parts manufacturing industry, more and more pneumatic components are widely used. The pneumatic components, especially some of the control valve and some of the implementing agencies in the action, the instantaneous compressed air exhaust noise up to 120dB (A) or so, in addition to the cylinder crane, pneumatic grinding wheel, pneumatic friction clutch and other machinery There is such a jet noise. Although the exhaust time of these devices is very short, but exhaust frequently, more equipment, the body of the workers have some harm, so the treatment of this jet exhaust noise is very necessary and urgent.