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:
Aug. 07, 2012
Filed:
Aug. 15, 2007
Hidekuni Murakami, Tokyo, JP;
Satoshi Nishimura, Tokyo, JP;
Hidekuni Murakami, Tokyo, JP;
Satoshi Nishimura, Tokyo, JP;
Nippon Steel Corporation, Tokyo, JP;
Abstract
The present invention provides a product for enameling and an enameled product that achieve adhesion, bubble/black spot defect resistance and fishscale resistance, even when preprocessing and ground coating are omitted, which product comprise a steel sheet having on the surface thereof an oxide film of 0.10 μm to 400 μm thickness comprising oxides of components of the steel sheet, which steel sheet comprises, in mass %, C: 0.0001% to 0.040%, Si: 0.0001% to 0.50%, Mn: 0.001% to 2.00%, P: 0.0001% to 0.10%, S: 0.0001% to 0.060%, Al: 0.0001% to 0.10%, N: 0.0001% to 0.015%, and O: 0.0001% to 0.070%, further comprises one or more of Ni: 0.01% to 2.00%, Co: 0.0005% to 2.00%, Cr: 0.001% to 2.00%, Cu: 0.01% to 2.00%, Mo: 0.0001% to 2.00%, and Ti: 0.0005% to 0.50%, where Ni+Co+Cr/2+Cu+Mo+Ti: 0.010% to 8.0%, the balance being Fe and unavoidable impurities.