一前言对于液压装置说来,为预防故障的发生,对液压油严格管理是很重要的原因。因为液压油在使用中会劣化而污染,引起油的性能发生变化,这是元件出现故障的原因。因液压油各性能变化引起元件的故障,列于表1。液压油的换油标准,随装置的运行压力,运转温度,要求粘度,污染敏感程度而异,因很难有一个统一的数值。所以只就现在一般使用的一些标准介绍如下。 A preamble to the hydraulic device that, in order to prevent the occurrence of failure, the strict management of hydraulic oil is very important reason. Because the hydraulic oil will deteriorate in use and pollution, causing the oil performance changes, which is the cause of component failure. Components due to changes in the performance of hydraulic oil failure, are shown in Table 1. Hydraulic oil change standards, with the device operating pressure, operating temperature, viscosity requirements, pollution sensitivity varies, because it is difficult to have a uniform value. So just introduce some of the standard now generally used as follows.