液压油抗泡失效的情形及其解决办法

Foaming Problems of Hydraulic Oils and Recommended Solutions

液压系统运转时,如果液压油中存在大量的气泡可能会对液压系统造成严重危害。液压油中存在一定含量的表面活性物质,导致液压油的泡沫倾向性及泡沫稳定性增强。通过选择使用不同类型的消泡剂可以解决液压油的泡沫问题,液压油在经过长时间的储存后,因抗泡剂发生沉降,抗泡性能可能变差。在使用过程中,因混入某些具有表面活性的污染物,有时会发生抗泡失效的情形。

During the operation of hydraulic system,the occurrence of bubbles in the hydraulic oil may cause serious damage to the hydraulic system.Some additives of hydraulic oil are surface active substances,which leads to the increased foam tendency and foam stability of the hydraulic oil.By using appropriate types of defoamers,the foaming problem of hydraulic oil can be solved.After long-term storage of hydraulic oil,the antifoam performance may be deteriorated because the antifoam agent settles.During use,due to the invasion of certain surface-active contaminants,the anti-foam ability of the hydraulic oils may deteriorate.