Because of the quick change and unexpected stop of the circulating direction of oil liquid, the machine tool hydraulicsystem will produce pressure impact.
机床液压系统由于油液流动方向迅速改变或突然停止流动，产生压力冲击。
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This paper analyzed the principle and function of the multi-purpose hydraulic control valve in the circulating-water system of BF and its application and effect was introduced.