Electrical steel sheet and method for manufacturing same
US-12163066-B2 · Dec 10, 2024 · US
Grain-oriented electrical steel sheet
US9761361B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9761361-B2 |
| Application number | US-201314376916-A |
| Country | US |
| Kind code | B2 |
| Filing date | Feb 8, 2013 |
| Priority date | Feb 8, 2012 |
| Publication date | Sep 12, 2017 |
| Grant date | Sep 12, 2017 |
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Abstract
Official abstract text for this publication.
A grain-oriented electrical steel sheet produces reduced noise when worked into a transformer, by setting length d of each plastic strain region in the widthwise direction of the steel sheet to 0.05 mm or more and 0.4 mm or less, and a ratio (Σd/Σw) of a total Σd of the length d to a total Σw of application interval w of each of the above plastic strain regions to 0.2 or more and 0.6 or less.
First claim
Opening claim text (preview).
The invention claimed is: 1. A grain-oriented electrical steel sheet having plastic strain regions in a dot-sequence manner in a widthwise direction of the steel sheet with magnetic domain refining treatment, wherein a length d of each of the plastic strain regions in the widthwise direction of the steel sheet is 0.05 mm or more and 0.4 mm or less, an application interval w of each of the plastic strain regions is 0.15 mm to 1.0 mm, a ratio Σd/Σw of a total Σd of the length d to a total Σw of the application interval w of each of the plastic strain regions is 0.2 or more and 0.6 or less, and the grain-oriented electrical steel sheet has a composition comprising C: 0.08 mass % or less, Si: 2.0 mass % to 8.0 mass %, Mn: 0.005 mass % to 1.0 mass % and a balance of Fe and incidental impurities. 2. The grain-oriented electrical steel sheet according to claim 1 , wherein a ratio d/w of the length d of each of the plastic strain regions to the application interval w corresponding to the length d of each of the plastic strain regions is 0.2 or more and 0.6 or less. 3. The grain-oriented electrical steel sheet according to claim 1 , wherein the plastic strain regions are formed by electron beam irradiation. 4. The grain-oriented electrical steel sheet according to claim 2 , wherein the plastic strain regions are formed by electron beam irradiation.
Assignees
Inventors
Classifications
Grain orientation · CPC title
Heating by cathodic discharges · CPC title
containing In, Mg, or other elements not provided for in one single group C22C38/001 - C22C38/60 · CPC title
containing silicon · CPC title
containing tin · CPC title
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- What does patent US9761361B2 cover?
- A grain-oriented electrical steel sheet produces reduced noise when worked into a transformer, by setting length d of each plastic strain region in the widthwise direction of the steel sheet to 0.05 mm or more and 0.4 mm or less, and a ratio (Σd/Σw) of a total Σd of the length d to a total Σw of application interval w of each of the above plastic strain regions to 0.2 or more and 0.6 or less.
- Who is the assignee on this patent?
- Jfe Steel Corp
- What technology area does this patent fall under?
- Primary CPC classification H01F1/16. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Sep 12 2017 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 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).