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:
Jul. 08, 2008
Filed:
Jun. 05, 2001
Ichiro Sato, Himeji, JP;
Kaichiro Ishido, Himeji, JP;
Tomomi Mori, Himeji, JP;
Toshihiro Irie, Himeji, JP;
Kazuya Kodama, Himeji, JP;
Kiyoshi Kawakami, Himeji, JP;
Shuhei Kitano, Himeji, JP;
Ichiro Sato, Himeji, JP;
Kaichiro Ishido, Himeji, JP;
Tomomi Mori, Himeji, JP;
Toshihiro Irie, Himeji, JP;
Kazuya Kodama, Himeji, JP;
Kiyoshi Kawakami, Himeji, JP;
Shuhei Kitano, Himeji, JP;
Sanyo Special Steel Co., Ltd., Himeji, JP;
Abstract
A process for producing a high-cleanliness steel is provided which can produce, without relying upon a high-cost remelting process, steel products having cleanliness high enough to satisfy requirements for properties of mechanical parts used under severe environmental conditions. The production process comprises the steps of: transferring a molten steel produced in an arc melting furnace or a converter to a ladle furnace to refine the molten steel; subjecting the molten steel to circulation-type degassing; and casting the molten steel into an ingot, wherein, in transferring the molten steel to the ladle furnace, a deoxidizer including aluminum and silicon, is added to previously deoxidize the molten steel, that is, to perform tapping deoxidation before refining in the ladle refining furnace.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile