| 摘要 |
PURPOSE:To produce a high silicon steel sheet high in magnetic permeability and low in iron loss by heat treatment in a magnetic field. CONSTITUTION:As for a silicon steel sheet having a compsn. contg. 4 to 10wt.% Si or 4 to 10wt.% Si+Al and, in which preferably, the content of C, Mn, P, S, N, O or the like is regulated to prescribed one and having <=0.5mm sheet thickness and 20mum to 2.0mm average crystal grain size, the impression of a magnetic field of 1.6 to 640A/m effective magnetic field is started in the temp. range of 350 to <650 deg.C, and successively, cooling is executed to <=300 deg.C in the same magnetic field. |
