Colloidal properties and microstructure of lithium greases

Shchegolev, G. G.; Trapeznikov, A.A.; Astakhov, I. I.

doi:10.1007/bf00730260

Cited by 2 publications

(1 citation statement)

References 2 publications

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“…As shown in Figure 2, the degree of physical and chemical degradation can be characterized by indicators such as appearance, oxidation properties, friction properties, and rheological properties. The changes in appearance of lubricating grease can be preliminarily observed and compared through human eyes, and a more detailed microscopic morphology can also be obtained through an electron microscope scanner (SEM) (ATA Scientific Pty Ltd., Caringbah, Australia) [10], transmission electron microscopy (TEM) (JEOL Ltd., Tokyo, Japan) [11], and atomic force microscopy (AFM) (Oxford Instruments Asylum Research, Oxford, UK) [12]. The appearance of lubricating grease was compared through human-eye observation, and the microstructure of lubricating grease was compared and analyzed through SEM testing in this article.…”

Section: Performance Testing Of Lubricating Greasementioning

confidence: 99%

Experimental Study on In Situ Storage of Grease-Lubricated Ball Screws

Cui,

Hou,

et al. 2024

Applied Sciences

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Lubricating grease plays an important role in the rolling screw transmission of the actuation system and is particularly concerned with the performance stability of long-term storage in aerospace applications. In this article, a batch of ball screws that were lying flat in the warehouse for about eight years were selected to extract lubricating grease from the screw raceway after being stored in situ. The oxidation performance, friction performance and rheological properties of lubricating grease were tested and compared to those of fresh grease to analyze and summarize the performance changes in lubricating grease. The transmission efficiency, friction torque, and temperature rise of ball screws without removing the original grease and those filled with fresh grease after cleaning were tested and compared. The impact of grease degradation on the transmission performance of ball screws was analyzed to provide a reference for ball screw lubrication schemes and further accelerated storage experimental design.

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Section: Performance Testing Of Lubricating Greasementioning

confidence: 99%