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液压元件的寿命是液压传动设备中的一个基本问题。好的先进的液压元件比落后的元件寿命可相差五倍甚至十倍。液压元件的寿命是一个综合指标,它与元件的正确设计与计算,材料及热处理工艺的选取;元件的工作条件与正确使用等有关,其中特别是热处理工艺,往往一个同样的设计(甚至同样的材料成分),由于热处理工艺不同,元件的寿命可相差很大。所以在一些资本主义国家里,液压件材料及工艺往往是保密的。一般液压传动中主要元件是泵、马达、油缸及阀。除了某些油封、纸质滤油器、单向阀钢球等次要零件寿命较低外,油泵及油马达常是液压传动主要元件中寿命较低的一个,这是因为油泵中某些滑动副不可避免地要在不平衡高油压作用下工作的结果。
The life of hydraulic components is a fundamental issue in hydraulics. Good advanced hydraulic components than the backward component life can be a difference of five times or even ten times. The life of hydraulic components is a comprehensive indicator, which is related to the correct design and calculation of components, the selection of materials and heat treatment processes, and the working conditions of components are related to the proper use. Especially the heat treatment process often has the same design (even the same Material composition), due to the different heat treatment process, the life of the components can vary greatly. So in some capitalist countries, the hydraulic components and processes are often kept confidential. The main components of hydraulic transmission in general are pumps, motors, fuel tanks and valves. In addition to some of the oil seal, paper filter, check valve steel balls and other minor parts of lower life expectancy, the oil pump and oil motor is often the main components of the hydraulic transmission life of a lower one, this is because some slip in the pump Vice inevitably to work under the effect of uneven high oil pressure.