前言随着现代工业复杂程度的增加及液压的多种功用,液压系统故障的诊断已成为极其重要了。在许多情况下,系统损坏或故障的第一个迹象表现为密封处泄漏。许多工程技术人员都认为是密封件本身损坏引起的。然而,密封处泄漏常常是系统中别处有毛病,工程技术人员确定密封损坏的原因,以便消除进一步破坏的可能性,不仅重要,甚至是必要的。故障形式密封故障有低压和高压两种基本形式,它们可能为密封件处的泄漏或密封件的损坏。 Preface With the increasing complexity of modern industry and the multiple functions of hydraulics, the diagnosis of hydraulic system malfunctions has become extremely important. In many cases, the first sign of system damage or malfunction is a leak at the seal. Many engineers and technicians think the seal itself is damaged. However, leaks at the seals are often a problem elsewhere in the system, and engineers and technicians determine the cause of the seal damage so as to eliminate the possibility of further damage, not only important but also necessary. Failures There are two basic forms of low and high pressure seal failure, which may be seals at the seal or seal damage.