Teaser: Lubricants & Coolants, Part 1: Cold Rolling

The first part puts the focus on lubricants for cold rolling applications. Three case studies are presented after a detailed introduction of LUM’s patented STEP-Technology® (Space and Time resolved measurement of Extinction Profiles) for particle, droplet and dispersion characterization. The accelerated stability testing of o/w emulsions within few minutes by using a LUMiSizer® instrument is compared with a rather complex emulsion stability index determination lasting for several hours and having a higher economic and environmental impact than the LUM method.
The combination of droplet size distributions, direct accelerated stability testing results, both obtained by the same LUMiSizer, with other analytical methods form the basis for a reliable lubricants characterization, making it applicable for even challenging samples. This concept can also to be applied to other kind of formulations, products and applications.
In the final case study, qualitative and quantitative comparison by the instability index are discussed.
Customers’ experiences including the prediction of long-term rolling oil emulsion stability are subject to a literature review.
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