Multilayer electronic component and conductive paste composition for internal electrode
US-2015371728-A1 · Dec 24, 2015 · US
Grain-oriented electric steel sheet having superior magnetic property
US9997283B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9997283-B2 |
| Application number | US-201514963625-A |
| Country | US |
| Kind code | B2 |
| Filing date | Dec 9, 2015 |
| Priority date | Dec 23, 2010 |
| Publication date | Jun 12, 2018 |
| Grant date | Jun 12, 2018 |
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- Title
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Abstract
Official abstract text for this publication.
Provided is a grain-oriented electric steel sheet having superior magnetic property and to a grain-oriented electric steel sheet including 2.0 to 4.5 weight % of Si, 0.001 to 0.10 weight % of C, 0.010 weight % or lower of Al, 0.08 weight % or lower of Mn, 0.005 weight % or lower of N, 0.002 to 0.050 weight % of S, the remainder being Fe and other unavoidable impurities. The steel sheet having been subjected to secondary recrystallization using at least any one of grain boundary-segregated elementary S and an FeS precipitate as a grain growth inhibitor.
First claim
Opening claim text (preview).
The invention claimed is: 1. A grain-oriented electrical steel sheet having excellent magnetic properties, the steel sheet comprising 2.0-4.5 wt % of Si, 0.003 wt % or less of C, 0.0027-0.010 wt % of Al, 0.08 wt % or less of Mn, 0.005 wt % or less of N, and the balance of Fe and unavoidable impurities, and subjected to secondary recrystallization using at least any one of grain boundary-segregated elementary S and an FeS precipitate as a grain growth inhibitor. 2. The grain-oriented electrical steel sheet of claim 1 , wherein the density of Al oxides in the thickness-directional cross-section of the steel sheet is 0.1-500/mm 2 . 3. The grain-oriented electrical steel sheet of claim 1 , wherein the steel sheet contains 0.05 wt % or less of Mn and 0.0005 wt % or more of S. 4. The grain-oriented electrical steel sheet of claim 2 , wherein the steel sheet contains 0.05 wt % or less of Mn and 0.0005 wt % or more of S. 5. The grain-oriented electrical steel sheet of claim 1 , wherein the steel sheet has a coercivity of 30 A/m or less under an alternating magnetic field of 1.7 Tesla at 50 Hz. 6. The grain-oriented electrical steel sheet of claim 2 , wherein the steel sheet has a coercivity of 30 A/m or less under an alternating magnetic field of 1.7 Tesla at 50 Hz.
Assignees
Inventors
Classifications
containing N · CPC title
- H01F1/01Primary
of inorganic materials (H01F1/44 takes precedence) · CPC title
containing aluminium · CPC title
Grain orientation · CPC title
Dispersions; Precipitations · CPC title
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- What does patent US9997283B2 cover?
- Provided is a grain-oriented electric steel sheet having superior magnetic property and to a grain-oriented electric steel sheet including 2.0 to 4.5 weight % of Si, 0.001 to 0.10 weight % of C, 0.010 weight % or lower of Al, 0.08 weight % or lower of Mn, 0.005 weight % or lower of N, 0.002 to 0.050 weight % of S, the remainder being Fe and other unavoidable impurities. The steel sheet having b…
- Who is the assignee on this patent?
- Posco
- What technology area does this patent fall under?
- Primary CPC classification H01F1/01. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Jun 12 2018 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).