济南装载机液压油质量直接影响着装载机的正常工作，在选择液压油的时候一定要注意液压油的质量，液压油粘度过低会使零部件摩擦严重，粘度过高会导致启动困难及油泵吸油不良，以确?；档恼Ｔ诵小Ｄ敲从Ω萌绾闻卸弦貉褂偷恼扯饶?？

1、玻璃板倾斜法：取一块干净的玻璃板，将其水平放置，并将被测液压油滴一滴在玻璃上，同时在旁边再滴一滴标准液压油，然后将玻璃板倾斜，并注意观察：如果被测油液的流速和流动距离均比标准油液大，则说明其粘度比标准油液低，反之，则说明其粘度比标准油液高。
Take a clean glass plate, which was placed horizontally and tested hydraulic oil drop by drop on the glass, while a drop in again next standard hydraulic oil, then tilt the glass and observe: If the oil tested than the standard flow rate and the flow of oil from the large, then the viscosity of the oil is lower than the standard, and vice versa, then the oil having a viscosity higher than the standard.
　
2、玻璃瓶倒置法：将被测的液压油液与标准油液分别盛在两个大小和长度相同的透明玻璃瓶中，再用塞子将两瓶口堵上。将两瓶并排放置在一起，然后同时迅速将两瓶倒置。如果被测液压油在瓶中的气泡比标准油液在瓶中的气泡上升得快，则说明油液的粘度比标准油液粘度低，反之，则说明油液粘度比标准油液粘度高；若两种油液气泡上升的速度接近，则说明粘度也相似。
Hydraulic fluid to be tested with a standard oil were served in the same size and length of two transparent glass bottles, and then plug the two bottle stuffed. The two bottles side by side together, and then quickly while two bottles upside down. If the measured hydraulic oil in the bottle of bubbles in the bottle than the standard oil bubbles rise quickly, then the viscosity of the oil is lower than the standard oil viscosity, and vice versa, then the oil viscosity is higher than standard oil viscosity; If the two kinds of oil bubble rise velocity close, then the viscosity is also similar.

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