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Electrical steel sheet provided with insulating coating
US2016111182A1 · US · A1
| Field | Value |
|---|---|
| Publication number | US-2016111182-A1 |
| Application number | US-201414893370-A |
| Country | US |
| Kind code | A1 |
| Filing date | May 13, 2014 |
| Priority date | May 23, 2013 |
| Publication date | Apr 21, 2016 |
| Grant date | — |
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- Title
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Abstract
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There is provided an electrical steel sheet provided with an insulating coating which has high corrosion resistance and high adhesion. The electrical steel sheet provided with an insulating coating includes an electrical steel sheet and an insulating coating disposed on the electrical steel sheet. The insulating coating includes Zr and Fe. The content of Zr in the insulating coating is in the range of 0.05 to 1.50 g/m 2 in terms of ZrO 2 . The compositional ratio between Zr and Fe is such that the molar ratio of Fe to Zr, that is, the ratio of the amount (moles) of Fe included in the insulating coating to the amount (moles) of Zr included in the insulating coating, is in the range of 0.10 to 2.00.
First claim
Opening claim text (preview).
1 . An electrical steel sheet provided with an insulating coating, which comprises: an electrical steel sheet; and an insulating coating disposed on the electrical steel sheet, wherein the insulating coating includes Zr and Fe, the content of Zr in the insulating coating is in the range of 0.05 to 1.50 g/m 2 in terms of ZrO 2 , and the compositional ratio between the molar amount of Fe included in the insulating coating to the molar amount of Zr included in the insulating coating is in the range of 0.10 to 2.00. 2 . The electrical steel sheet provided with the insulating coating according to claim 1 , wherein the insulating coating further includes Si, and the compositional ratio between the molar amount of Si included in the insulating coating to the molar amount of Zr included in the insulating coating is in the range of 2.00 or less. 3 . The electrical steel sheet provided with the insulating coating according to claim 1 , wherein the insulating coating further includes P, and the compositional ratio between the molar amount of P included in the insulating coating to the molar amount of Zr included in the insulating coating is in the range of 1.50 or less. 4 . The electrical steel sheet provided with the insulating coating according to claim 1 , wherein the insulating coating further includes an organic resin, and the compositional ratio between the solid content (g) of the organic resin included in the insulating coating to the amount (g) of Zr included in the insulating coating in terms of the mass of ZrO 2 is in the range of 0.50 or less. 5 . The electrical steel sheet provided with the insulating coating according to claim 2 , wherein the insulating coating further includes P, and the compositional ratio between the molar amount of P included in the insulating coating to the molar amount of Zr included in the insulating coating is in the range of 1.50 or less. 6 . The electrical steel sheet provided with the insulating coating according to claim 2 , wherein the insulating coating further includes an organic resin, and the compositional ratio between the solid content (g) of the organic resin included in the insulating coating to the amount (g) of Zr included in the insulating coating in terms of the mass of ZrO 2 is in the range of 0.50 or less. 7 . The electrical steel sheet provided with the insulating coating according to claim 3 , wherein the insulating coating further includes an organic resin, and the compositional ratio between the solid content (g) of the organic resin included in the insulating coating to the amount (g) of Zr included in the insulating coating in terms of the mass of ZrO 2 is in the range of 0.50 or less. 8 . The electrical steel sheet provided with the insulating coating according to claim 5 , wherein the insulating coating further includes an organic resin, and the compositional ratio between the solid content (g) of the organic resin included in the insulating coating to the amount (g) of Zr included in the insulating coating in terms of the mass of ZrO 2 is in the range of 0.50 or less.
Assignees
Inventors
Classifications
Metallic substrates · CPC title
Preformed particles · CPC title
Inorganic polymers, e.g. silanes, polysilazanes, polysiloxanes · CPC title
Treatment of iron or alloys based thereon · CPC title
by cathodic sputtering · CPC title
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Frequently asked questions
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- What does patent US2016111182A1 cover?
- There is provided an electrical steel sheet provided with an insulating coating which has high corrosion resistance and high adhesion. The electrical steel sheet provided with an insulating coating includes an electrical steel sheet and an insulating coating disposed on the electrical steel sheet. The insulating coating includes Zr and Fe. The content of Zr in the insulating coating is in the r…
- Who is the assignee on this patent?
- Jfe Steel Corp
- What technology area does this patent fall under?
- Primary CPC classification C21D8/1283. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Thu Apr 21 2016 00:00:00 GMT+0000 (Coordinated Universal Time) (A1). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).