Metal treatment – Process of modifying or maintaining internal physical... – Magnetic materials
Patent
1986-07-02
1989-01-10
Sheehan, John P.
Metal treatment
Process of modifying or maintaining internal physical...
Magnetic materials
148112, H01E 104
Patent
active
047971673
ABSTRACT:
Method for the production of a single oriented silicon steel sheet having excellent magnetic property which comprises providing a silicon steel slab containing 0.010.about.0.10% C, 2.5.about.4.5% Si, 0.02.about.0.15% Mn, and a total of 0.008.about.0.080% of one or two of S and Se, hot rolling the silicon steel slabing to sheet, and subjecting the hot rolled sheet to a two-step annealing procedure wherein the first half is at a temperature of 1000.degree..about.1200.degree. C. and the latter half at 750.degree..about.980.degree. C., and to at least two cold rolling steps.
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Mori Yasukazu
Nakashima Shouzaburo
Nakayama Hisanobu
Shimoyama Yoshiaki
Nippon Steel Corporation
Sheehan John P.
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