METHOD OF FEEDING LUBRICANT IN STRAIN SITE Russian patent published in 2013 - IPC B21B45/02 

FIELD: process engineering.

SUBSTANCE: intention relates to metallurgy. Proposed method comprises feeding oil into converging slot between roll surfaces and strip, forming oil wedge, forcing oil in converging slot ahead of strain site depending upon oil viscosity, forming oil layer separating roll and strip surfaces, adding iron 5-10 nm-particles to oil and applying oleic acid active substance coating on iron nanoparticles surface, Note here that said nanoparticles are subjected to effects of controlled magnetic field induced by inductor.

EFFECT: controlled lubrication and oil viscosity, longer life of rolls, higher efficiency of rolling nonferrous metals.

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