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Showing posts from April, 2011

Understanding Ferrous Density

As part of my job, I regularly present oil analysis training seminars. One of the tests we discuss is ferrous density. I find that this test is seldom well understood, and, probably as a result, is seldom used. Explanation of the Test Ferrous density is the density of ferrous, or more correctly, of ferromagnetic particles distributed in the oil. The other ferromagnetic elements that one might encounter in lubricated components are nickel and cobalt, but in practice, these elements are likely to be present only in comparatively small quantities. Therefore, we are effectively measuring the concentration of magnetic steel alloys. There is no single way to conduct a ferrous density analysis. There are many ways of performing this rather essential test. Perhaps the two most common are the direct-reading ferrography, a technique which uses light blockage analysis of material deposited on a glass slide; and electromagnetic induction, which measures the voltage induced in a current-carrying ...

Food Grade Lubricants

Food Grade Lubricants W e are currently working on the April edition of Engineering Maintenance Solutions. This edition will contain an extensive  Food Grade Lubricants spotlight section. This section will allow companies to highlight their latest products/services with up to 120 words plus a colour picture and full contact details for just £150.00. (1/2 A4 Page).   The April edition of EMS will be printed and emailed to an audience of over 36,000 engineers across the UK including factory managers, warehouse managers, plant engineers, works managers, chief engineers, maintenance managers/engineers, operations managers/directors and production engineers. A further 52,000 digital copies of EMS magazine will then be e-casted to an audience of primary engineers across the world. The digital edition will also be hosted on   www.engineeringmaintenance.info which now receives over 23,000 unique visitors per month.      If you would like ...