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Determining the drop point of grease by automatic drop point determination technology (CAT#: STEM-PPA-0182-LJX)

Introduction

The drop point is a comprehensive expression of the melting temperature of the grease thickener, the softening of the grease by heat, and the oil separation of the grease under high temperature. Under normal circumstances, grease with high drop point has good thermal stability and is not easy to soften and separate oil at high temperature; Grease with low drop point is easy to separate oil at high temperature or lose due to evaporation, resulting in an increase in the tendency of mechanical equipment wear due to lubrication failure.




Principle

During the test, the cup containing the sample is placed on the support, and the furnace is installed on the outside of it. The expected drop point temperature of the sample is set through the instrument keyboard, and the temperature is raised according to the preset heating program. The photodetector automatically records the temperature at which the first drop of sample is dropped from the mouth of the cup, which is the drop point of the sample.

Applications

For drop point determination of non-crystalline materials such as synthetic and natural products

Procedure

1. Place the sample in the cup and put it on the support in the furnace
2. Start the instrument program to heat up
3. The instrument automatically records the temperature at which the first drop of sample drops from the mouth of the cup, that is, the drop point

Materials

• Sample Type:
Grease

Notes

The experiment should be repeated three times, and the average value should be taken to ensure the accuracy of the results.
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