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Grain-oriented electrical steel sheet and magnetic domain refining method therefor
US11772189B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-11772189-B2 |
| Application number | US-201816957932-A |
| Country | US |
| Kind code | B2 |
| Filing date | Dec 17, 2018 |
| Priority date | Dec 26, 2017 |
| Publication date | Oct 3, 2023 |
| Grant date | Oct 3, 2023 |
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- Title
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Abstract
Official abstract text for this publication.
A grain-oriented electrical steel sheet according to an embodiment of the present invention includes: a groove on a line formed on one surface of an electrical steel sheet in a direction crossing a rolling direction; and a thermal shock portion on a line formed on one surface of the electrical steel sheet in the direction crossing the rolling direction, wherein a distance between the groove and the thermal shock portion is 1 mm or less.
First claim
Opening claim text (preview).
The invention claimed is: 1. A grain-oriented electrical steel sheet, comprising: a groove on a line formed on one surface of an electrical steel sheet in a direction crossing a rolling direction; and a thermal shock portion on a line formed on one surface of the electrical steel sheet in the direction crossing the rolling direction, wherein a distance between the groove and the thermal shock portion is 1 mm or less, and wherein a plurality of the thermal shock portions are formed, and a distance between the thermal shock portions is 2 to 5 times the distance between the grooves. 2. The grain-oriented electrical steel sheet of claim 1 , wherein a plurality of grooves are formed, and a distance between the grooves is 1.5 to 10 mm.
Assignees
Inventors
Classifications
- B23K26/0006Primary
taking account of the properties of the material involved (B23K26/32, B23K26/40 take precedence) · CPC title
by shock processing · CPC title
for making a groove or trench, e.g. for scribing a break initiation groove · CPC title
Steel {or steel} alloys · CPC title
- C21D8/1277Primary
involving a particular surface treatment (C21D8/1294 takes precedence) · CPC title
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Frequently asked questions
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- What does patent US11772189B2 cover?
- A grain-oriented electrical steel sheet according to an embodiment of the present invention includes: a groove on a line formed on one surface of an electrical steel sheet in a direction crossing a rolling direction; and a thermal shock portion on a line formed on one surface of the electrical steel sheet in the direction crossing the rolling direction, wherein a distance between the groove and…
- Who is the assignee on this patent?
- Posco, Posco Co Ltd
- What technology area does this patent fall under?
- Primary CPC classification B23K26/0006. Mapped technology areas include Operations & Transport.
- When was this patent published?
- Publication date Tue Oct 03 2023 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).