Oriented electromagnetic steel sheet and method for manufacturing oriented electromagnetic steel sheet
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United States of America Patent
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Aug 17, 2021
Grant Date -
Aug 22, 2019
app pub date -
Oct 17, 2017
filing date -
Oct 18, 2016
priority date (Note) -
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Abstract
Provided are: an oriented electromagnetic steel sheet with outstanding coating adhesion and magnetic properties after stress relief annealing; and a method for manufacturing the oriented electromagnetic steel sheet. The oriented electromagnetic steel sheet comprises: a steel sheet; a non-oxide ceramic coating disposed on the steel sheet and containing a non-oxide; and an insulating tensile coating disposed on the non-oxide ceramic coating and containing an oxide. The thickness of the non-oxide ceramic coating is 0.020-0.400 μm. The thickness of the insulating tensile coating is at least 1.0 μm. The chromium content on the steel plate side of the non-oxide ceramic coating is less than 25 atomic %, and the chromium content on the insulating tensile coating side of the non-oxide ceramic coating is at least 25 atomic %.
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International Classification(s)
- C23C:COATING METALLIC MATERIAL; COATING MATERIAL WITH M....
- H01F:MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF M....
- C23F:NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM S....
- C21D:MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS....
- C22C:ALLOYS
- C23D:ENAMELLING OF, OR APPLYING A VITREOUS LAYER TO, ME....
- B32B:LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA....
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