Solution for Forming Insulation Coating and Grain-Oriented Electrical Steel Sheet
US-2015368158-A1 · Dec 24, 2015 · US
Electrical steel sheet
US10519551B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-10519551-B2 |
| Application number | US-201515533238-A |
| Country | US |
| Kind code | B2 |
| Filing date | Dec 22, 2015 |
| Priority date | Dec 26, 2014 |
| Publication date | Dec 31, 2019 |
| Grant date | Dec 31, 2019 |
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Abstract
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An electrical steel sheet (1) includes a base material (2) of electrical steel, and an insulating film (3) formed on a surface of the base material (2). The insulating film (3) contains a phosphates of one or more selected from the group consisting of Al, Zn, Mg and Ca. The phosphate exhibits a specific peak having a top within a range of −26 ppm to −16 ppm in a solid 31P-NMR spectrum, and a proportion of an integrated intensity of the specific peak relative to an integrated intensity of all peaks in the solid 31P-NMR spectrum is 30% or more.
First claim
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The invention claimed is: 1. An electrical steel sheet, comprising: a base material of electrical steel; and an insulating film formed on a surface of the base material, wherein the insulating film contains at least one type of phosphate selected from the group consisting of Al, Zn, Mg and Ca, and wherein the at least one type of phosphate exhibits a specific peak having a top within a range of −26 ppm to −16 ppm in a solid 31 P-NMR spectrum, and a proportion of an integrated intensity of the specific peak relative to an integrated intensity of all peaks in the solid 31 P-NMR spectrum is 30% or more. 2. The electrical steel sheet according to claim 1 , wherein a half width of the specific peak is 20 ppm or more. 3. The electrical steel sheet according to claim 2 , wherein the insulating film contains an organic resin. 4. The electrical steel sheet according to claim 1 , wherein the insulating film contains an organic resin.
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- What does patent US10519551B2 cover?
- An electrical steel sheet (1) includes a base material (2) of electrical steel, and an insulating film (3) formed on a surface of the base material (2). The insulating film (3) contains a phosphates of one or more selected from the group consisting of Al, Zn, Mg and Ca. The phosphate exhibits a specific peak having a top within a range of −26 ppm to −16 ppm in a solid 31P-NMR spectrum, and a pr…
- Who is the assignee on this patent?
- Nippon Steel & Sumitomo Metal Corp, Nippon Steel Corp
- What technology area does this patent fall under?
- Primary CPC classification C23C22/08. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Dec 31 2019 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 1 related publication on this page (citations in our corpus or others sharing the same primary CPC).