SHEET FROM TEXTURED ELECTRICAL STEEL HAVING A CHROMIUM-FREE INSULATING COATING CREATING A TENSION, AND METHODS OF MAKING SUCH A STEEL SHEET Russian patent published in 2019 - IPC C23C22/07 H01F1/16 C22C38/00

Abstract RU 2698234 C1

FIELD: metallurgy.

SUBSTANCE: invention relates to metallurgy, particularly, to fabrication of sheets from textured electrical steel with chromium-free insulating coating creating tension. Coating is deposited on at least one side of a grain-oriented electrical steel sheet and contains a phosphate salt, silicon dioxide and a crystalline compound of general formula: M^II₃M^III₄ (X^VO₄)₆, where M^II and M^III each independently represents one, or two, or more elements selected from Sc, Ti, V, Mn, Fe, Co, Ni, Cu and Mg, and X^V represents one, or two, or more elements selected from P, V and Mo.

EFFECT: produced sheets have required resistance to moisture absorption and coating tension.

6 cl, 3 tbl, 2 ex

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RU 2 698 234 C1

Authors

Yoshizaki Souichiro

Watanabe Makoto

Suehiro Ryuichi

Dates

2019-08-23—Published

2017-09-08—Filed