PEFTEC - Abstract

Abstract Title: Latest Advances in Lubricant and Grease Instrumentation for Oxidation Testing
Abstract Type: Poster
Session Choice: Other
Presenter Name: Dr Raj Shah
Co-authors:Mr Avishek Mojumdar
Mr Blerim Gashi
Company/Organisation: Koehler Instrument Company, Inc.
Country: United States

Abstract Information :

Oxidation of oil occurs when there is a presence of oxygen air and heat. Atmospheric oxygen reacts with hydrocarbons which then form carboxylic acids. Over time, the concentration may rise and ultimately lead to corrosion of the machine to which the lubricant is applied. Thus, the lubricant would be doing more harm than good. antioxidant additives are included in formulations to protect the lubricants. Furthermore, the oil must be kept clean, dry, and as cool as possible in order to manage oxidation rates. To test this resistance of lubricating greases to oxidation, the testing method ASTM D942 is often utilized. A test using this method cannot predict whether grease will remain stable under dynamic service conditions, whether grease will remain stable when stored in containers for long periods, or whether films of grease will remain stable on bearings and motor parts. It should not be used to estimate grease types relative oxidation resistance. This poster will discuss the developments in oxidation testing of greases and how these newly developed methods have been utilized in a recent study.rn