Metal treatment – Process of modifying or maintaining internal physical... – Magnetic materials
Patent
1997-08-06
1999-01-05
Sheehan, John
Metal treatment
Process of modifying or maintaining internal physical...
Magnetic materials
148120, H01F 104
Patent
active
058556940
ABSTRACT:
Production of grain-oriented silicon steel sheet, in which the heating temperature of slabs is as low as that in common steels and good magnetic properties are maintained, without applying a nitriding process. The contents of Al, Se and S substantially satisfy formulae (1) and (2), and both or either of formulae (3) and (4):
Annealing of the hot rolling sheet is applied at a temperature of about 800.degree. C. or more, and about 1000.degree. C. or below; preferably, cold rolling is applied at about 100.degree. C. or more, using a tandem mill.
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Honda Atsuhito
Muraki Mineo
Sadahiro Kenichi
Takashima Minoru
Toge Tetsuo
Kawasaki Steel Corporation
Miller Austin R.
Sheehan John
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