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噪声污染和水源污染、空气污染一起被列为三大公害。高噪声环境不但影响人们的正常生活,还会引起操作工人的职业病。因此,控制噪声是一个重要课题。锯切金属的圆锯机的噪声有时高达120分贝,虽然对圆锯机的结构设计,隔声措施等进行了一系列的研究,但至今尚未达到令人满意的效果。 对电弧锯锯切金属进行试验研究,就是试图用强大的电流在锯片和工件之间产生电弧,促使工件熔化并将已熔化的金属用旋转的锯片带走,以降低由锯片和工件冲击所产生的噪声,从而达到降噪的目的。
Noise pollution and water pollution, air pollution together as the three major public hazards. High-noise environment not only affects people’s normal life, but also cause occupational diseases of workers. Therefore, controlling noise is an important issue. Circular sawing machines sawing metal sometimes sometimes up to 120 decibels of noise. Although a series of studies have been conducted on the structural design of circular saws and sound insulation measures, satisfactory results have not yet been reached. An experimental study of the sawing of arc saws attempted to generate an electric arc between the saw blade and the workpiece with a strong current that caused the workpiece to melt and take the melted metal away from the rotating saw blade to reduce the risk of the saw blade and workpiece Impact of the noise generated, so as to achieve the purpose of noise reduction.