油液清洁度等级.ppt

油液清洁度等级.ppt

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1.2油液污染分析油液污染分析1.2.21.2.2油液污染度测定油液污染度测定油液污染度的表示方法油液污染度的表示方法11油液污染度的测定油液污染度的测定22ISO4406ISO4406：

19991999（GB/T14039-2002GB/T14039-2002）11NAS1638NAS163822SAE749DSAE749D33自动颗粒计数器计数法自动颗粒计数器计数法11显微镜计数法显微镜计数法22显微镜比较法显微镜比较法33滤网堵塞法滤网堵塞法44称重法称重法55ISO4406污染度分级代码污染度分级代码每毫升的颗粒数代码大于小于等于250000028130000025000002864000013000002732000064000026160000320000258000016000024400008000023200004000022100002000021500010000202500500019130025001864013001732064016160320158016014408013204012102011510102.5591.32.580.641.370.320.6460.160.3250.080.1640.040.0830.020.0420.010.0210.000.010颗粒尺寸每毫升油液中大于此尺寸的颗粒数代码4m（c）2000040000226m（c）130025001814m（c）40801322/18/13*/18/13大于等于4m（c）的颗粒太多而无法计数。

-/18/13大于等于4m（c）的颗粒不需要计数。

1.2油液污染分析油液污染分析NAS1638NAS1638污染度分级标准（污染度分级标准（污染度分级标准（污染度分级标准（100100mlml液压油液中颗粒数）液压油液中颗粒数）液压油液中颗粒数）液压油液中颗粒数）污染等级颗粒尺寸范围（m）515152525505010010000125224100250448201500891631210001783261320003566311244000712126224580001425253458616000285050690167320005700101218032864000114002025360649128000228004050720128102560004560081001440256115120009120016200288051212102400018240032400576010241.2油液污染分析油液污染分析SAE749DSAE749D污染分级标准（污染分级标准（污染分级标准（污染分级标准（100100mlml液压油液中颗粒数液压油液中颗粒数液压油液中颗粒数液压油液中颗粒数）尺寸范围（m）污染等级01234567102.55待定510270046009700240003200087000128000待定1025670134020805360107002140042000255093210380780151031306500501001628561102254301000100135112141921.2油液污染分析油液污染分析各种污染度等级对照表各种污染度等级对照表ISO代码代码每毫升油液每毫升油液10m颗粒数颗粒数AC粉末重量水平粉末重量水平（毫克（毫克/升）升）MILSTD1246A（1967）NAS1638（1964）SAE749D等级等级26/23140000100025/2385000100023/201400010070021/1845001220/18240050020/1723001120/1614001019/1612001018/155809617/142803008516/1314017415/12706314/124020014/11355213/1014.14112/993011/85210/8310010/72.3110/61.4.019/61.208/5.6007/5.3506/3.14.0015/2.04252/.8.01101.2油液污染分析油液污染分析