Determining the drop point of greases and solid hydrocarbons by automatic drop point determination technology (CAT#: STEM-PPA-0183-LJX)

Introduction

Grease is used in mechanical lubrication because it has the ability to attach to parts without loss, so it is necessary to know at what temperature the grease loses this ability. By measuring the drop point, we can understand the mechanical characteristics of the grease and determine the maximum temperature limit when the grease is used (the maximum use temperature of the general grease is more than 35°C lower than the drop point).

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Principle Applications Procedure Materials Notes Related Products

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:
Greases and solid hydrocarbons

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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