Hydraulic technology is widely applied in machinofacture、 metallurgy、aviation、light manufacturing and other fields .Its hydraulic circuit has a great variety,and the working condition also has many requirements on hydraulic circuit.The vibration、noise and temperature rise of hydraulic circuit are harmful phenomenons to its normal running.With continuous increase of its running speed and pressure build-up
,those phenomenons will become more severe.The
temperature rise affects its working performance greatly,so on the premise of meeting job requirement,the system pressure should be as low as possible,and pipeline as simple as possoble to avoid rise of oil temperature caused by various energy losses.
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