工业润滑油ISO有什么粘度分类

2025-03-15 16:57:17
推荐回答(1个)
回答(1):

ISO全称是International Organization for Standardization,翻译成中文就是“国际标准化组织”。工业润滑油使用于各种不同机器,例如用在工业齿轮上的齿轮油,液压设备的液压油、其它还有汽轮机油、压缩机油……鉴于工业机器的多样性和复杂性,粘度分类让人眼花缭乱,既然粘度如此重要,那么能否有一个统一的分类标准,让人一目了然的看出粘度信息呢?因此就有了ISO粘度。

1975年,ISO组织联手美国材料与试验协会ASTM(American Society for Testing and Materials)、美国摩擦与润滑协会STLE(Society for Tribologists and Lubrication Engineers)、英国标准协会BSI(British Standards Institute)以及德国标准化协会DIN(Deutsches Institute for Normung),一起确定出一套通用的粘度分级方法,防止各种分法带来的繁杂和迷惑,“ISO粘度等级”就是国际标准化组织认证过的粘度级别。ISO粘度标示为ISO VG,其中VG表示:粘度等级(Viscosity Grade)。如ISO VG 220、ISO VG 320等等。

4. ISO粘度等级划分标准:

由于润滑油的粘度会随温度变化:温度升高,润滑油粘度降低(变稀),温度降低,粘度增加(变稠),因此在制定ISO粘度级别时,充分考虑了工业应用的各因素,把40ºC测定的运动粘度(kinematic viscosity)作为ISO粘度的基准。

ISO粘度等级一直在发展,最新的表在1992年发布,分为20个粘度级别,最低级别为2,最高为3200。粘度级别越高,粘度越大。


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