Real-world oil analysis: Sometimes recognizing a problem can take a long time to reveal itself

摘要

Let's continue our discussion on concepts in oil analysis data evaluation from a worm gear drive in an industrial manufacturing plant. There are 17 reports available for this component, as we'll inspect the most recent samples to present, as shown in Figure 1. At first glance this looks sudden but, looking at the Fe pattern now, we can see that the two previous samples were predictive of the wear event in the most current sample, perhaps not as boring as I claimed. Si (silicon) has dramatically increased, as well and, with no evidence to the contrary, is likely indicative of abrasive contamination,