Process for the production of grain oriented electrical steel
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United States of America Patent
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Apr 3, 2007
Grant Date -
May 27, 2004
app pub date -
Dec 17, 2001
filing date -
Dec 18, 2000
priority date (Note) -
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status (Latency Note)
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Abstract
A process for the production of electrical steel strips, in which a strip is directly cast from molten steel and contains alloy elements apt to generate a precipitation of sulphides and/or nitrides apt to inhibit the grain growth. The strip is hot rolled in-line with the casting operation at a temperature between 1250 and 1000.degree. C., and in which the strip is coiled after hot rolling at a temperature of less than 780.degree. C. if sulphides are utilized, or at a temperature of less than 600.degree. C. if nitrides, or nitrides plus sulphides, are utilized.
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