Silicon-containing iron sheet for electrical applications and methods for its manufacture
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United States of America Patent
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Nov 16, 1993
Grant Date -
N/A
app pub date -
Oct 15, 1992
filing date -
Oct 16, 1991
priority date (Note) -
Expired
status (Latency Note)
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Abstract
In the manufacture of a silicon-containing iron sheet for electrical applications consisting of 0.1-8% by weight Si, optionally up to 1% by weight Al, remainder iron and unavoidable impurities, iron sheet is made by electrodeposition, and silicon or a silicon-containing material is incorporated in the electro-deposited iron sheet. The silicon-containing material may be included in the electrolyte, becoming embedded during the electro-deposition in the iron sheet. The method can be performed without a step of thickness reduction of the iron sheet made by electro-deposition. The sheet is annealed to homogenize the silicon content.
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