INSULATION COATING COMPOSITION FOR GRAIN-ORIENTED ELECTRICAL STEEL SHEET, METHOD FOR FORMING INSULATION COATING OF GRAIN-ORIENTED ELECTRICAL STEEL SHEET, AND GRAIN-ORIENTED ELECTRICAL STEEL SHEET HAVING INSULATION COATING FORMED THEREON
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United States of America Patent
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Dec 27, 2018
app pub date -
Dec 15, 2016
filing date -
Dec 15, 2016
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Abstract
The present invention relates to an insulation coating composition for a grain-oriented electrical steel sheet, a method for forming an insulation coating of a grain-oriented electrical steel sheet, and a grain-oriented electrical steel sheet having an insulation coating formed thereon. Specifically, the present invention can provide: an insulation coating composition for a grain-oriented electrical steel sheet, the composition comprising 0.1-10 wt % of an inorganic nitride, 30-60 wt % of colloidal silica, and 30-60 wt % of a metal phosphate; a method for forming an insulation coating of a grain-oriented electrical steel sheet using the same, and a grain-oriented electrical steel sheet having an insulation coating formed thereon.
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