Non-oriented electrical steel superior in core loss

Details Non-oriented electrical steel superior in core loss Non-oriented electrical steel superior in core loss

2005-09-28

2010-02-16

Sheehan, John P. (Department: 1793)

Metal treatment

Stock

Magnetic

C148S111000, C148S121000, C148S306000, C148S307000

Reexamination Certificate

active

07662242

ABSTRACT:
Non-oriented electrical steel sheet superior in core loss characterized by containing, by mass %, C: 0.01% or less, Si: 0.1% to 7.0%, Al: 0.1% to 3.0%, Mn: 0.1% to 2.0%, N: 0.005% or less, Ti: 0.02% or less, REM: 0.05% or less, S: 0.005% or less, O: 0.005% or less, and a balance of iron and unavoidable impurities and having a mass % of S shown by [S], a mass % of O shown by [O], a mass % of REM shown by [REM], a mass % of Ti shown by [Ti], and a mass % of N shown by [N] satisfying [Formula 1] and [Formula 2]:in-line-formulae description="In-line Formulae" end="lead"?[REM]2×[O]2×[S]≧1×10−15  [Formula 1]in-line-formulae description="In-line Formulae" end="tail"?in-line-formulae description="In-line Formulae" end="lead"?([REM]2×[O]2×[S])÷([Ti]×[N])≧1×10−10  [Formula 2].in-line-formulae description="In-line Formulae" end="tail"?

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