MUMBAI, India, June 13 -- Intellectual Property India has published a patent application (202517049105 A) filed by Jfe Steel Corporation, Tokyo, on May 21, for 'grain-oriented electromagnetic steel sheet and method for manufacturing same.'
Inventor(s) include Yamada Takuya; Watanabe Makoto; and Terashima Takashi.
The application for the patent was published on June 13, under issue no. 24/2025.
According to the abstract released by the Intellectual Property India: "When a steel material having a prescribed component composition is hot-rolled, cold-rolled, and subjected to decarburization and annealing which also serves as primary recrystallisation annealing, an annealing separator is applied to the surface of the steel sheet, finishing annealing is carried out, and then flattening annealing is carried out to manufacture a grain-oriented electromagnetic steel sheet: a ceramic, preferably a ceramic comprising a carbide, a nitride, or an oxide of one or more metal elements selected from Mg, Al, Si, Ti, Cr, Zr, or Y, or a ceramic comprising a complex of two or more substances from among the abovementioned carbides, nitrides, and oxides, is electrodeposited on the surface of the finishing-annealed steel sheet, and a ceramic coating is formed; and a coating tension of preferably 5-40 MPa is applied to the steel sheet, whereby a low-iron-loss grain-oriented electromagnetic steel sheet having a coating that has excellent uniformity and adhesion and that is capable of imparting high tension to the steel sheet surface is obtained."
The patent application was internationally filed on Nov. 21, 2023, under International application No.PCT/JP2023/041721.
Disclaimer: Curated by HT Syndication.
