Abstract:Oil-in-water emulsions are generally used in tandem cold rolling mills as lubricants, as they provide good lubricity and cooling performance. Lubricants are supplied by either a recirculation system or a direct application system. The dynamic concentration and the plate-out are known as the two main lubrication mechanisms, respectively, used in the two conventional lubrication applications. But it is difficult to realize direct control of the lubrication characteristics only using the dynamic concentration mec… Show more
“…6 and 9, it can be seen that the COF is more dependent on the emulsion, and especially on the additives. A common model for emulsion lubrication is the plate-out theory [10]. When an oil droplet is exposed to a metal surface, the layer formed by the polar orientation of the emulsifier molecule induces droplets to adsorb onto the metal surface.…”
Section: Discussion On the Influence Of The Additivesmentioning
confidence: 99%
“…Frequently-used emulsifiers in lubrication technology are nonionic surfactants [9]. Researchers have conventionally attributed emulsion effectiveness to the idea that droplets 'plate out' onto exposed metal surfaces [10].…”
“…6 and 9, it can be seen that the COF is more dependent on the emulsion, and especially on the additives. A common model for emulsion lubrication is the plate-out theory [10]. When an oil droplet is exposed to a metal surface, the layer formed by the polar orientation of the emulsifier molecule induces droplets to adsorb onto the metal surface.…”
Section: Discussion On the Influence Of The Additivesmentioning
confidence: 99%
“…Frequently-used emulsifiers in lubrication technology are nonionic surfactants [9]. Researchers have conventionally attributed emulsion effectiveness to the idea that droplets 'plate out' onto exposed metal surfaces [10].…”
“…The plate-out theory is based on the idea that a film of essentially pure oil is formed driven by the preferential wetting of the metal surfaces by the oil phase [55,59]. Plate-out theory proposes that oil droplets are trapped on the roll or on the strip because of their polar affinity towards the two metallic bodies, as schematically represented in Figure 2.5a.…”
Section: Lubrication Theories For Oil-in-water Emulsionsmentioning
confidence: 99%
“…Dynamic concentration theory is based on the idea that once the oil droplets of the emulsion are trapped in the roll bite, the concentration of oil increases while excluding the water from the roll bite [59]. This theory is based on pressure buildup in the roll bite and higher viscosity of the oil.…”
Section: Lubrication Theories For Oil-in-water Emulsionsmentioning
This research was carried out under project number F41.1.14551 in the framework of the Partnership Program of the Materials innovation institute M2i (www.m2i.nl) and the Foundation of Fundamental Research on Matter (FOM) (www.fom.nl), which is part of the Netherlands Organization for Scientific Research (www.nwo.nl).
“…The 'plate out' process is schematically drawn in Fig. 2.2 [51][52][53]. In stage a), the oil droplets suspend in water, then in stage b) the oil droplets adsorb onto the metal surface.…”
Section: Water Lubrication For Mechanical Systems and Production Procmentioning
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