KR101919528B1 - 방향성 전기강판 및 이의 제조방법 - Google Patents
방향성 전기강판 및 이의 제조방법 Download PDFInfo
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- C21D8/1233—Cold rolling
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- C21D8/12—Modifying the physical properties of ferrous metals or ferrous alloys by deformation combined with, or followed by, heat treatment during manufacturing of articles with special electromagnetic properties
- C21D8/1244—Modifying the physical properties of ferrous metals or ferrous alloys by deformation combined with, or followed by, heat treatment during manufacturing of articles with special electromagnetic properties characterised by the heat treatment
- C21D8/1272—Final recrystallisation annealing
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- C21D8/00—Modifying the physical properties of ferrous metals or ferrous alloys by deformation combined with, or followed by, heat treatment
- C21D8/12—Modifying the physical properties of ferrous metals or ferrous alloys by deformation combined with, or followed by, heat treatment during manufacturing of articles with special electromagnetic properties
- C21D8/1277—Modifying the physical properties of ferrous metals or ferrous alloys by deformation combined with, or followed by, heat treatment during manufacturing of articles with special electromagnetic properties involving a particular surface treatment
- C21D8/1283—Application of a separating or insulating coating
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- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/46—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for sheet metals
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- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/001—Ferrous alloys, e.g. steel alloys containing N
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/002—Ferrous alloys, e.g. steel alloys containing In, Mg, or other elements not provided for in one single group C22C38/001 - C22C38/60
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- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/004—Very low carbon steels, i.e. having a carbon content of less than 0,01%
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- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/005—Ferrous alloys, e.g. steel alloys containing rare earths, i.e. Sc, Y, Lanthanides
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- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
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- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/008—Ferrous alloys, e.g. steel alloys containing tin
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
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- C22C38/04—Ferrous alloys, e.g. steel alloys containing manganese
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- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
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- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/06—Ferrous alloys, e.g. steel alloys containing aluminium
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- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
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- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/34—Ferrous alloys, e.g. steel alloys containing chromium with more than 1.5% by weight of silicon
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- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/60—Ferrous alloys, e.g. steel alloys containing lead, selenium, tellurium, or antimony, or more than 0.04% by weight of sulfur
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Abstract
Description
| 비고 | In함량 (중량%) |
광택도 | 조도(Ra:㎛) |
| 비교재1 | 0 | 불량 | 0.67 |
| 발명재1 | 0.06 | 매우 우수 | 0.097 |
| 발명재2 | 0.1 | 매우 우수 | 0.078 |
| 발명재3 | 0.15 | 매우 우수 | 0.089 |
| 발명재4 | 0.2 | 매우 우수 | 0.066 |
| 발명재5 | 0.24 | 매우 우수 | 0.082 |
| 발명재6 | 0.30 | 매우 우수 | 0.066 |
| 비교재2 | 0.55 | 압연 크랙 발생 | |
| 구 분 | In 함량 (중량 %) |
Sb 함량 (중량 %) |
철손(W17 /50) |
| 비교재3 | 0 | 0 | 1.05 |
| 발명재7 | 0.005 | 0 | 0.98 |
| 발명재8 | 0.01 | 0 | 0.96 |
| 발명재9 | 0.02 | 0 | 0.93 |
| 발명재10 | 0.038 | 0 | 0.93 |
| 발명재11 | 0.05 | 0 | 0.98 |
| 발명재12 | 0.1 | 0 | 0.99 |
| 비교재4 | 0.55 | 0 | 2.2 |
| 발명재13 | 0.01 | 0.031 | 0.96 |
| 발명재14 | 0.02 | 0.028 | 0.92 |
| 발명재15 | 0.04 | 0.030 | 0.93 |
| 발명재16 | 0.09 | 0.029 | 0.97 |
| 비교재5 | 0.54 | 0.030 | 압연불량 |
Claims (15)
- 중량%로, Si:1.0% 내지 7.0%, C:0.005% 이하(0%를 포함하지 않는다), In:0.001% 내지 0.5% 및 잔부는 Fe 및 기타 불가피하게 혼입되는 불순물을 포함하는 방향성 전기강판.
- 제1항에 있어서,
Mn:0.005중량% 내지 0.9중량%, Al:0.01 내지 0.1 중량%, N:0.015중량% 내지 0.05중량% 및 S:0.03 중량% 이하(0%를 포함하지 않는다) 더 포함하는 방향성 전기강판. - 제1항에 있어서,
Sb: 0.005 중량% 내지 0.15중량% 및 Sn: 0.005 중량% 내지 0.2 중량% 중 1종 이상을 더 포함하는 방향성 전기강판. - 제1항에 있어서,
P: 0.005중량% 내지 0.075 중량% 및 Cr: 0.005 중량% 내지 0.35 중량% 중 1종 이상을 더 포함하는 방향성 전기강판. - 제1항에 있어서,
결정립 입경이 1mm이하인 결정립의 면적 비율이 10% 이하인 방향성 전기강판. - 제1항에 있어서,
표면 조도(Ra)는 0.8㎛ 이하인 방향성 전기강판. - 중량%로, Si:1.0% 내지 7.0%, C:0.005% 내지 0.10%, In:0.001% 내지 0.5% 및 잔부는 Fe 및 기타 불가피하게 혼입되는 불순물을 포함하는 슬라브를 제공하는 단계;
상기 슬라브를 가열하는 단계;
상기 슬라브를 열간 압연하여 열연판을 제조하는 단계;
상기 열연판을 냉간 압연하여 냉연판을 제조하는 단계;
상기 냉연판을 1차 재결정 소둔하는 단계; 및
상기 1차 재결정 소둔이 완료된 강판을 2차 재결정 소둔하는 단계;
를 포함하는 방향성 전기강판의 제조방법. - 제7항에 있어서,
상기 슬라브는 Mn:0.005중량% 내지 0.9중량%, Al:0.01 내지 0.1중량%, N:0.02중량% 이하(0%를 포함하지 않는다) 및 S:0.03 중량% 이하(0%를 포함하지 않는다) 더 포함하는 방향성 전기강판의 제조방법. - 제7항에 있어서,
상기 슬라브는 Sb: 0.005 중량% 내지 0.15중량% 및 Sn: 0.005 중량% 내지 0.2 중량% 중 1종 이상을 더 포함하는 방향성 전기강판의 제조방법. - 제7항에 있어서,
상기 슬라브는 P: 0.005중량% 내지 0.075 중량% 및 Cr: 0.005 중량% 내지 0.35 중량% 중 1종 이상을 더 포함하는 방향성 전기강판의 제조방법. - 제7항에 있어서,
상기 2차 재결정 소둔하는 단계에서, 1차 재결정 소둔이 완료된 강판에 소둔 분리제를 도포하고, 2차 재결정 소둔하는 방향성 전기강판의 제조방법. - 제11항에 있어서,
상기 소둔 분리제는 고형분으로 MgO 또는 Al2O3만을 포함하는 방향성 전기강판의 제조방법. - 제11항에 있어서,
상기 2차 재결정 소둔하는 단계 후, 강판 표면에 형성된 베이스 코팅층을 제거하는 단계를 더 포함하는 방향성 전기강판의 제조방법. - 제7항에 있어서,
상기 1차 재결정 소둔이 완료된 강판은 N을 0.015중량% 내지 0.05중량% 포함하는 방향성 전기강판의 제조방법. - 제7항에 있어서,
상기 2차 재결정 소둔하는 단계는 가열 단계 및 균열 단계를 포함하고, 상기 균열 단계는 900 내지 1250℃의 온도로 수행되는 방향성 전기강판의 제조방법.
Priority Applications (6)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020160177014A KR101919528B1 (ko) | 2016-12-22 | 2016-12-22 | 방향성 전기강판 및 이의 제조방법 |
| JP2019534128A JP6842549B2 (ja) | 2016-12-22 | 2017-12-20 | 方向性電磁鋼板およびその製造方法 |
| US16/472,480 US11667984B2 (en) | 2016-12-22 | 2017-12-20 | Grain-oriented electrical steel sheet and manufacturing method therefor |
| CN201780080222.0A CN110100025B (zh) | 2016-12-22 | 2017-12-20 | 取向电工钢板及其制造方法 |
| PCT/KR2017/015129 WO2018117642A1 (ko) | 2016-12-22 | 2017-12-20 | 방향성 전기강판 및 이의 제조방법 |
| EP17884744.8A EP3561105B1 (en) | 2016-12-22 | 2017-12-20 | Grain-oriented electrical steel sheet and manufacturing method therefor |
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| KR1020160177014A KR101919528B1 (ko) | 2016-12-22 | 2016-12-22 | 방향성 전기강판 및 이의 제조방법 |
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| Publication Number | Publication Date |
|---|---|
| KR20180073309A KR20180073309A (ko) | 2018-07-02 |
| KR101919528B1 true KR101919528B1 (ko) | 2018-11-16 |
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| Country | Link |
|---|---|
| US (1) | US11667984B2 (ko) |
| EP (1) | EP3561105B1 (ko) |
| JP (1) | JP6842549B2 (ko) |
| KR (1) | KR101919528B1 (ko) |
| CN (1) | CN110100025B (ko) |
| WO (1) | WO2018117642A1 (ko) |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| KR102561510B1 (ko) | 2019-02-08 | 2023-08-02 | 닛폰세이테츠 가부시키가이샤 | 방향성 전자 강판, 방향성 전자 강판의 절연 피막 형성 방법, 및 방향성 전자 강판의 제조 방법 |
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| JP4288054B2 (ja) | 2002-01-08 | 2009-07-01 | 新日本製鐵株式会社 | 方向性珪素鋼板の製造方法 |
| JP4427225B2 (ja) | 2002-02-25 | 2010-03-03 | 新日本製鐵株式会社 | 方向性電磁鋼板の製造方法 |
| JP4943175B2 (ja) | 2007-02-14 | 2012-05-30 | 新日本製鐵株式会社 | 磁束密度の高い方向性電磁鋼板の製造方法 |
| CN104884644B (zh) | 2012-12-28 | 2017-03-15 | 杰富意钢铁株式会社 | 方向性电磁钢板的制造方法 |
| KR20150073551A (ko) | 2013-12-23 | 2015-07-01 | 주식회사 포스코 | 방향성 전기강판 및 그 제조방법 |
| KR101633255B1 (ko) | 2014-12-18 | 2016-07-08 | 주식회사 포스코 | 방향성 전기강판 및 그 제조방법 |
-
2016
- 2016-12-22 KR KR1020160177014A patent/KR101919528B1/ko active Active
-
2017
- 2017-12-20 US US16/472,480 patent/US11667984B2/en active Active
- 2017-12-20 EP EP17884744.8A patent/EP3561105B1/en active Active
- 2017-12-20 WO PCT/KR2017/015129 patent/WO2018117642A1/ko not_active Ceased
- 2017-12-20 JP JP2019534128A patent/JP6842549B2/ja active Active
- 2017-12-20 CN CN201780080222.0A patent/CN110100025B/zh active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000104143A (ja) * | 1998-09-29 | 2000-04-11 | Kawasaki Steel Corp | 保持力の低い低鉄損一方向性珪素鋼板およびその製造方法 |
| JP2006299297A (ja) | 2005-04-15 | 2006-11-02 | Jfe Steel Kk | 磁気特性に優れた方向性電磁鋼板の製造方法 |
Also Published As
| Publication number | Publication date |
|---|---|
| EP3561105A4 (en) | 2019-10-30 |
| JP6842549B2 (ja) | 2021-03-17 |
| EP3561105A1 (en) | 2019-10-30 |
| US20210130918A1 (en) | 2021-05-06 |
| WO2018117642A1 (ko) | 2018-06-28 |
| US11667984B2 (en) | 2023-06-06 |
| CN110100025B (zh) | 2021-05-14 |
| JP2020509209A (ja) | 2020-03-26 |
| EP3561105C0 (en) | 2025-07-23 |
| CN110100025A (zh) | 2019-08-06 |
| KR20180073309A (ko) | 2018-07-02 |
| EP3561105B1 (en) | 2025-07-23 |
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