气制动元件密封性的测定及其指标换算

Measurement of Tightness of Air Brake Elements

介绍了国内外气制动元件制造行业采用的三种密封性测定方法及其评定指标，导出了单位时间漏气量和密封性指数两个不同评定指标之间的换算关系。其结果亦可推广用于定量估算气制动元件漏气量对气制动系统密封性的影响。

In this paper three tightness measuring methods and evaluation parameters utilized inair brake element manufacturers domestically and overseas are presented. A conversion expression fortwo different evaluation parameters,the leakage per unit time and tightness index, is derived,it canalso be spread to use in the quantitative estimating the effect of the air brake element leakage uponthe air brake system tightness.