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Non Oriented Electrical Steel Sheet And Manufacturing Method Therefor
Abstract: Disclosed are a method for manufacturing a non-oriented electrical steel sheet, and the manufactured non-oriented electrical steel sheet, the method comprising the steps of: heating a slab comprising, by wt%, 0.005% or less of C, 2.5-4.0% of Si, 0.1% or less of P, 0.1-2.0% of Al, 0.2-2.5% of Mn, 0.003% or less of N, 0.005% or less of Ti and Nb, 0.003% or less of S, 0.005-0.025% of V, 0.1% or less of Cu, and the balance of Fe and inevitably mixed-in impurities, and satisfying the following relation 1; hot rolling the slab so as to manufacture a hot rolled plate; cold rolling the hot rolled plate so as to manufacture a cold rolled plate; and finally annealing the cold rolled plate, wherein [relation 1] is represented by (51*[C])/12-0.002 = [V] = (51*[C])/12+0.004 (In relation 1, [C] and [V] represent the amount (wt%) of C and V, respectively).
Notices, Deadlines & Correspondence
Patent Information
Applicants
POSCO
Inventors
1. KIM, Jae-Song
2. SHIN, Su-Yong
3. KIM, Yong-Soo
Specification
Documents
Application Documents
| # | Name | Date |
|---|---|---|
| 1 | 202247040366.pdf | 2022-07-14 |
| 2 | 202247040366-TRANSLATIOIN OF PRIOIRTY DOCUMENTS ETC. [14-07-2022(online)].pdf | 2022-07-14 |
| 3 | 202247040366-STATEMENT OF UNDERTAKING (FORM 3) [14-07-2022(online)].pdf | 2022-07-14 |
| 4 | 202247040366-REQUEST FOR EXAMINATION (FORM-18) [14-07-2022(online)].pdf | 2022-07-14 |
| 5 | 202247040366-PROOF OF RIGHT [14-07-2022(online)].pdf | 2022-07-14 |
| 6 | 202247040366-PRIORITY DOCUMENTS [14-07-2022(online)].pdf | 2022-07-14 |
| 7 | 202247040366-POWER OF AUTHORITY [14-07-2022(online)].pdf | 2022-07-14 |
| 8 | 202247040366-FORM 18 [14-07-2022(online)].pdf | 2022-07-14 |
| 9 | 202247040366-FORM 1 [14-07-2022(online)].pdf | 2022-07-14 |
| 10 | 202247040366-DRAWINGS [14-07-2022(online)].pdf | 2022-07-14 |
| 11 | 202247040366-DECLARATION OF INVENTORSHIP (FORM 5) [14-07-2022(online)].pdf | 2022-07-14 |
| 12 | 202247040366-COMPLETE SPECIFICATION [14-07-2022(online)].pdf | 2022-07-14 |
| 13 | 202247040366-FER.pdf | 2022-08-25 |
| 14 | 202247040366-Information under section 8(2) [15-12-2022(online)].pdf | 2022-12-15 |
| 15 | 202247040366-FORM 3 [15-12-2022(online)].pdf | 2022-12-15 |
| 16 | 202247040366-OTHERS [20-02-2023(online)].pdf | 2023-02-20 |
| 17 | 202247040366-FER_SER_REPLY [20-02-2023(online)].pdf | 2023-02-20 |
| 18 | 202247040366-CLAIMS [20-02-2023(online)].pdf | 2023-02-20 |
| 19 | 202247040366-PatentCertificate21-02-2024.pdf | 2024-02-21 |
| 20 | 202247040366-IntimationOfGrant21-02-2024.pdf | 2024-02-21 |
Search Strategy
| 1 | 202247040366E_25-08-2022.pdf |