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    Your Position ：Home->Past Journals Catalog->2010 Vol.6

    Effect of Temperature on Grease Penetration
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    Key Words： Grease; Temperature; Penetration; Effect
    Abstract：Comparatively analyzed are different penetrations of several kind of greases under different temperature conditions and 25℃ temperature condition in laboratory. Analysis results show that grease penetration has ascendant trend as temperature rises and the mean of different greases has ascendant trend also. However, they have no linear relationship and there is no uniform conversion formula between penetrations under different temperature conditions and that under 25℃ temperature condition. Experiments prove that grease penetration can not be test when it is taken out from test vessel (under such temperature condition at that time). Only under 25℃±0.5℃ temperature and 90min constant temperature conditions, specimens shall be taken into and out from test vessel 60 times within 1min, accurate determination can be obtained.
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