Method for production of non-oriented electrical steel strip
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United States of America Patent
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May 27, 2008
Grant Date -
Feb 1, 2007
app pub date -
Jul 27, 2006
filing date -
May 14, 2003
priority date (Note) -
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Abstract
The present invention relates to a method for producing a non-oriented electrical steel with improved magnetic properties and improved resistance to ridging, brittleness, nozzle clogging and magnetic aging. The chromium bearing steel is produced from a steel melt which is cast as a thin slab or conventional slab, cooled, hot rolled and/or cold rolled into a finished strip. The finished strip is further subjected to at least one annealing treatment wherein the magnetic properties are developed, making the steel sheet of the present invention suitable for use in electrical machinery such as motors or transformers.
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