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随着液压技术的迅速发展,工作液体的污染控制日益受到国内外液压界的关注。对液压油液的高精度过滤及净化技术提出了更高的要求。由于外部污染物的侵入;内部金属、非金属滑动面的不断磨损;空气、水份的混入;有害能量的产生及油液高温氧化变质,使液压油液受到污染并使其性能不稳定和劣化。从而严重地影响液压系统和元件的寿命和动作可靠性。一九六五年美国国家流体动力协会调查认为液压系统75%以上故障是因油液污染引起的。一九七四年日本润滑技术协会调查统计:该年因油液管理不善而导致的损失达5兆6千
With the rapid development of hydraulic technology, the pollution control of working fluid is increasingly concerned by the hydraulic community at home and abroad. High precision hydraulic fluid filtration and purification technology put forward higher requirements. Due to external pollutants intrusion; internal metal, non-metallic sliding surface of the continuous wear and tear; air and water mixed; harmful energy and high temperature oil oxidation metamorphism, the hydraulic fluid contaminated and its performance instability and deterioration . Thus seriously affecting the life of hydraulic systems and components and operational reliability. In 1965, the National Fluid Power Association survey found that more than 75% of hydraulic system failures were caused by oil pollution. In 1974, the Japan Lubrication Technology Association survey statistics: the year due to mismanagement of oil caused losses of 5 trillion 6 thousand