Soft magnetic steel sheet and manufacturing method thereof
AssigneeHonda Motor Co., Ltd.
InventorsYoshiyuki NAKAZAWA, Hitoshi ITAMI, Akihito NINOMIYA, Ryutaro KATO
Life of this patent
Estimating the term…
Abstract
A soft magnetic steel sheet is manufactured by mixing an amount of molten scrap iron, an amount of substantially pure molten iron and an amount of substantially pure molten silicon so as to produce a molten alloy containing Fe as a base material, 1.0 to 7.0 wt % of Si, and 0.1 to 1.0 wt % of Cu, forming a soft magnetic steel sheet by subjecting the molten alloy to a liquid rapid cooling single roller process, and heat treating the soft magnetic steel sheet in an inert atmosphere at 600 to 1,200° C.
Claims8
A soft magnetic steel sheet, including
- Fe as a base material,
- 1.0 to 7.0 wt % of Si, and
- 0.1 to 1.0 wt % of Cu.
A method for manufacturing a soft magnetic steel sheet, comprising the steps of
- obtaining a molten alloy containing Fe as a base material, 1.0 to 7.0 wt % of Si, and 0.1 to 1.0 wt % of Cu from a material containing an amount of scrap iron;
- forming a soft magnetic steel sheet by subjecting the molten alloy to a liquid rapid cooling single roller process;
- and
- heat treating the soft magnetic steel sheet in an inert atmosphere at 600 to 1,200° C.
Dependencies are inferred from the claim text.