液压系统的清洁度是保证液压动力设备正常工作和使用寿命的必要条件。而影响液压系统清洁度的因素很多。首先,组成液压系统的零、部件,在其制造、存放、装配、试验的每一过程中所粘染的污物,都会带入液压系统,是液压系统中污染物的潜在来源。液压元件和液压油的污染情况与液压设备制造、使用的工作环境有关。工作环境还影响 Hydraulic system cleanliness is to ensure the normal operation of hydraulic power equipment and the necessary conditions of life. The factors that affect the cleanliness of the hydraulic system are many. First of all, the zero and parts that make up the hydraulic system are contaminated by the dirt that they stick to in every process of manufacture, storage, assembly and test. They are the potential sources of pollutants in the hydraulic system. Hydraulic components and hydraulic oil pollution and hydraulic equipment manufacturing, the use of the work environment. The working environment also affects