Ferrographic analysis is used to help pinpoint the source of particles. The particles contained in the lubricant carry detailed information about the condition of the machine. This information is deduced from particle shape, composition, size, and concentration. But where do you start to obtain that information? A ferrogram is the first step.
Focusing on wear particles as part of your oil analysis program is key in preventing equipment failure. However, when it comes to wear particle detection and analysis, there are a number of test methods available. Become familiar with each test and when it is appropriate to use them.
By most measures, including vibration analysis, there was nothing wrong with the General Electric turbine generator at the petro-chemical facility. Here’s how we discovered that a journal bearing had entered a critical wear mode.