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液压油在生产、储运和工作过程中,很容易使空气混入其中,这种掺混空气表现为以直径很小的球状气泡悬浮于油中。掺混的空气主要是通过液压油箱和泵的吸入管掺混进入油内,如油箱油面太低,泵吸入管口半露于油面或淹深很浅时,均可能将空气吸入;若泵的进油管路漏气,则大量的空气会被吸入;系统回油管口高于油箱油面时,高速喷射的系统回油也会卷带着空气进入油中。实践证明,溶解空气处于饱和状态
Hydraulic fluid is easily mixed with air during its production, storage, transportation and work. This kind of air mixture appears to be suspended in oil with spherical air bubbles of small diameter. Mixed air is mainly through the hydraulic tank and pump suction pipe into the oil into the mixing, such as the oil tank is too low, the pump inlet half exposed to the oil surface or submerged very shallow, may be the air inhalation; if Pump inlet pipe leaks, then a lot of air will be sucked in; system back to the nozzle height above the tank oil surface, the high-speed jet system will also bring the air back into the oil volume in the air. Practice has proved that dissolved air is saturated