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为了预测橡胶金属轴封的密封性及磨合时间,必须有接触区的几何特性变化的数据。以前在计算轴封的泄漏、接触压力或工作热状态时,一般都是以几何特性不随时间变化的假设为依据的。由于对轴封接触区的形成动力学缺乏系统的研究,往往使计算结果不准,也难于研究轴封的密封理论,在轴封的设计和批生产阶段,往往要对其密封性和磨合进行昂贵而劳动量大的试验。
In order to predict the seal and run-in time of the rubber metal shaft seal, there must be data on the geometric characteristics of the contact zone. Previous calculations of shaft seal leakage, contact pressure, or working thermal conditions have generally been based on the assumption that geometric characteristics do not change over time. Due to the lack of systematic study on the formation of the contact area of the shaft sealing, the calculation results are often not allowed, and it is difficult to study the sealing theory of the shaft sealing. During the design and batch production of the shaft sealing, the sealing and running-in are often required Expensive and labor-intensive test.