The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 17, 2007
Filed:
Jun. 04, 2004
Tsuyoshi Inoue, Chiba, JP;
Tsuyoshi Inoue, Chiba, JP;
Nippon Steel Corporation, Chiyoda-ku, Tokyo, JP;
Arcelor France, St. Denis, FR;
Abstract
An exemplary lubricated hot rolling method is provided which can use a lubricating oil containing, e.g., one or more kinds among an high-basic alkaline-earth metal phenate, high-basic alkaline-earth metal carboxylate, high-basic alkaline-earth salicylate, or high-basic alkaline-earth metal sulfonate having a basicity of 40 mgKOH/g or higher, and has a viscosity at 40° C. of 800 cSt or less. The rolling can be performed by granulating or atomizing the lubricating oil into particulates whose average size is less than 1 mm, supplying the lubricating oil to rolls by using a noncombustible gas whose flow rate is 2000 cmor more per minute per lubricating nozzle. The velocity of the oil may be 1 m or more per second. The amount supplied of the lubricating oil can be controlled to 0.01 cmor more and 20 cmor less per 1 mof a surface area of the rolls.