Patent ID: 8640517
Filing Date: 2014-02-04
Classification: B21B

Abstract:
1. A method for feeding lubricant during hot rolling, in which the surfaces of the rolling rolls are fed with a lubricating emulsion, comprising the steps of: providing a lubricating oil having a viscosity between 10 cSt and 400 cSt at 40° C., whereby the lubricating oil will not cause pipe fouling, mixing the lubricating oil with water to provide a lubricating emulsion, controlling the temperature of the lubricating emulsion to be a constant temperature above 0° C. but below 25° C., and directing the lubricating emulsion having the constant temperature above 0° C. but below 25° C. onto the surfaces of the rolling rolls via at least one lubricant feed nozzle, wherein less than one part by volume of lubricating oil is mixed in said mixing step with 100 parts by volume of water, whereby the lubricating oil will sufficiently adhere to the roll to lubricate the rolls.