Grain-oriented electrical steel sheet and method of manufacturing same
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United States of America Patent
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Jul 11, 2017
Grant Date -
Apr 23, 2015
app pub date -
Apr 26, 2012
filing date -
Apr 26, 2012
priority date (Note) -
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status (Latency Note)
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Abstract
A grain-oriented electrical steel sheet has low iron loss properties obtained though magnetic domain refining treatment by a chemical means. The steel sheet has a linear groove extending in a direction forming an angle of 45° or less with a direction orthogonal to a rolling direction of the steel sheet, in which presence frequency of fine grains with a length in the rolling direction of 1 mm or less in a floor portion of the groove is 10% or less, including 0% indicative of the absence of fine grains, the groove is provided with a forsterite film in an amount of 0.6 g/m2 or more in terms of Mg coating amount per one surface of the steel sheet, and an average of angles (β angles) formed by <100> axes of secondary recrystallized grains facing the rolling direction and a rolling plane of the steel sheet is 3° or less.
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| 7.5 Year Payment | $3600.00 | $1800.00 | $900.00 | Jan 11, 2025 |
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