MUMBAI, India, Nov. 2 -- Intellectual Property India has published a patent application (202617095296 A) filed by Nippon Steel Corporation on August 06, 2026, for Non-Oriented Electromagnetic Steel Sheet, Rotor Core, Stator Core, And Motor.
Inventors include Natori, Yoshiaki; Yashiki, Hiroyoshi; Fukuchi, Minako; and Takeda, Kazutoshi.
The application for the patent was published on October 30, 2026, under issue no. 44/2026.
Abstract: Provided is a non-oriented electromagnetic steel sheet capable of achieving high strength and excellent magnetic flux density and further achieving excellent iron loss. The present disclosure provides a non-oriented electromagnetic steel sheet having a chemical composition described in the description, wherein: the sheet thickness t is 0.30 mm or less; F1 defined by formula (1) is 10.0 or greater; F2 defined by formula (2) is 8.5 or less; F3 defined by formula (3) is equal to or less than iron loss W5/1000 at a frequency of 1000 Hz and a magnetic flux density of 0.5 T; and F4 defined by formula (4) is equal to or greater than iron loss W10/400 at a frequency of 400 Hz and a magnetic flux density of 1.0 T when the non-oriented electromagnetic steel sheet is heat-treated at 800°C for 1 hour. Formula (1): F1 = 4Si + 3Al + 2Mn Formula (2): F2 = 2Si + 3Al + Mn Formula (3): F3 = 45 - 12Si - 5Al - 2Mn + 1000 × t/(5 + 6Si + 5Al + 3Mn) Formula (4): F4 = 4 + 800 × t/(5 + 6Si + 5Al + 3Mn)
Disclaimer: Curated by HT Syndication.
