KR102099866B1 - 방향성 전기강판 및 그의 제조방법 - Google Patents
방향성 전기강판 및 그의 제조방법 Download PDFInfo
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Abstract
Description
도 2는 석출물의 성분 분석 그래프이다.
도 3 내지 도 7은 석출물을 Fe, Mn, Cu, S, Se 성분 별로 맵핑한 결과이다.
도 8은 석출물에 대한 격자회절패턴을 찍은 사진이다.
구분(wt%) | Mn | S | Se | S+Se | 자속밀도(B10, Tesla) | 철손(W17/50, W/kg) | 엣지크랙 |
비교재1 | 0.0008 | 0.005 | 0.005 | 0.01 | 1.855 | 1.31 | ≤ 20mm |
비교재2 | 0.005 | 0.005 | 0.0003 | 0.0053 | 1.849 | 1.37 | ≤ 20mm |
비교재3 | 0.005 | 0.0003 | 0.006 | 0.0063 | 1.864 | 1.3 | ≤ 20mm |
비교재4 | 0.01 | 0.002 | 0.002 | 0.004 | 1.809 | 1.42 | ≤ 20mm |
발명재1 | 0.01 | 0.005 | 0.005 | 0.01 | 1.911 | 0.99 | ≤ 20mm |
발명재2 | 0.02 | 0.01 | 0.005 | 0.015 | 1.925 | 0.97 | ≤ 20mm |
발명재3 | 0.03 | 0.01 | 0.015 | 0.025 | 1.933 | 0.95 | ≤ 20mm |
발명재4 | 0.04 | 0.015 | 0.015 | 0.03 | 1.929 | 0.96 | ≤ 20mm |
발명재5 | 0.05 | 0.015 | 0.02 | 0.035 | 1.932 | 0.95 | ≤ 20mm |
발명재6 | 0.06 | 0.02 | 0.02 | 0.04 | 1.935 | 0.94 | ≤ 20mm |
발명재7 | 0.07 | 0.025 | 0.02 | 0.045 | 1.928 | 0.96 | ≤ 20mm |
발명재8 | 0.08 | 0.03 | 0.02 | 0.05 | 1.917 | 0.98 | ≤ 20mm |
비교재5 | 0.08 | 0.055 | 0.005 | 0.06 | 1.853 | 1.07 | > 20mm |
비교재6 | 0.08 | 0.005 | 0.053 | 0.058 | 1.828 | 1.19 | > 20mm |
비교재7 | 0.09 | 0.025 | 0.025 | 0.05 | 1.785 | 1.53 | ≤ 20mm |
구분 | Cu(wt%) | 자속밀도(B10, Tesla) | 철손(W17/50, W/kg) | 엣지크랙 |
비교재8 | 0.0005 | 1.873 | 1.07 | ≤ 20mm |
발명재9 | 0.005 | 1.915 | 0.88 | ≤ 20mm |
발명재10 | 0.01 | 1.932 | 0.83 | ≤ 20mm |
발명재11 | 0.02 | 1.938 | 0.82 | ≤ 20mm |
발명재12 | 0.03 | 1.936 | 0.81 | ≤ 20mm |
발명재13 | 0.05 | 1.941 | 0.8 | ≤ 20mm |
발명재14 | 0.07 | 1.918 | 0.86 | ≤ 20mm |
발명재15 | 0.09 | 1.912 | 0.88 | ≤ 20mm |
비교재9 | 0.11 | 1.898 | 0.96 | ≤ 20mm |
구분 | B(wt%) | Mo(wt%) | 엣지크랙(mm) | 자속밀도(B10, Tesla) | 철손(W17/50, W/kg) |
비교재10 | <0.0001 | 0.05 | 29 | 1.901 | 0.91 |
비교재11 | <0.0001 | 0.2 | 23 | 1.875 | 0.96 |
발명재16 | 0.0005 | 0.02 | 20 | 1.912 | 0.87 |
발명재17 | 0.0005 | 0.1 | 15 | 1.922 | 0.85 |
발명재18 | 0.0011 | 0.03 | 16 | 1.927 | 0.83 |
발명재19 | 0.0015 | 0.1 | 12 | 1.928 | 0.84 |
발명재20 | 0.0035 | 0.15 | 9 | 1.933 | 0.81 |
발명재21 | 0.007 | 0.2 | 5 | 1.941 | 0.8 |
비교재12 | 0.009 | 0.25 | 2 | 1.906 | 0.9 |
발명재21 | 0.01 | 0.15 | 4 | 1.939 | 0.81 |
비교재13 | 0.01 | 0.005 | 25 | 1.899 | 0.92 |
비교재14 | 0.011 | 0.15 | 2 | 1.853 | 0.98 |
Claims (8)
- 중량%로, Si: 2.0 내지 4.5%, C: 0.005% 이하(0%를 제외함), Mn: 0.001 내지 0.08%, P: 0.001 내지 0.1%, Cu: 0.001 내지 0.1%, S:0.0005 내지 0.05%, Se: 0.0005 내지 0.05%, B: 0.0005 내지 0.01% 및 Mo: 0.02 내지 0.2%를 포함하고, 잔부는 Fe 및 기타 불가피한 불순물을 포함하고,
S 및 Se를 그 합량으로 0.005 내지 0.05 중량% 포함하는 방향성 전기강판. - 제1항에 있어서,
B: 0.0011 내지 0.01 중량% 포함하는 방향성 전기강판. - 제1항에 있어서,
Al: 0.0001 내지 0.01 중량% 및 N: 0.0005 내지 0.005 중량% 더 포함하는 방향성 전기강판. - 제1항에 있어서,
Cr: 0.001 내지 0.1 중량%, Sn: 0.005 내지 0.2 중량%, 및 Sb: 0.005 내지 0.2 중량% 중 1종 이상을 더 포함하는 방향성 전기강판. - 중량%로, Si: 2.0 내지 4.5%, C: 0.001 내지 0.1 중량%, Mn: 0.001 내지 0.08%, P: 0.001 내지 0.1%, Cu: 0.001 내지 0.1%, S:0.0005 내지 0.05%, Se: 0.0005 내지 0.05%, B: 0.0005 내지 0.01% 및 Mo: 0.02 내지 0.2%를 포함하고, 잔부는 Fe 및 기타 불가피한 불순물을 포함하고, S 및 Se를 그 합량으로 0.005 내지 0.05 중량% 포함하는 슬라브를 제조하는 단계;
상기 슬라브를 가열하는 단계;
상기 슬라브를 열간압연하여 열연판을 제조하는 단계;
상기 열연판을 냉간압연하여 냉연판을 제조하는 단계;
상기 냉연판을 1차 재결정 소둔하는 단계; 및
1차 재결정 소둔이 완료된 냉연판을 2차 재결정 소둔하는 단계를 포함하는 방향성 전기강판의 제조 방법. - 제5항에 있어서,
상기 열연판을 제조하는 단계 이후, 상기 열연판은 엣지크랙 최대 깊이가 20mm 이하인 방향성 전기강판의 제조 방법. - 제5항에 있어서,
상기 1차 재결정 소둔이 완료된 냉연판은 (Fe,Mn,Cu)S 및 (Fe,Mn,Cu)Se 중 1종 이상의 석출물을 포함하는 방향성 전기강판의 제조 방법. - 제5항에 있어서,
상기 1차 재결정 소둔하는 단계는 50℃ 내지 70℃의 이슬점 온도 및 수소 및 질소 혼합 분위기 에서 수행되는 방향성 전기강판의 제조 방법.
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CN201880084570.XA CN111566250B (zh) | 2017-12-26 | 2018-12-17 | 取向电工钢板及其制造方法 |
EP18894274.2A EP3733914A4 (en) | 2017-12-26 | 2018-12-17 | ORIENTED GRAIN ELECTRIC SHEET AND ITS MANUFACTURING PROCESS |
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JP4075083B2 (ja) * | 1996-11-05 | 2008-04-16 | Jfeスチール株式会社 | 方向性電磁鋼板の製造方法 |
AU2698097A (en) * | 1997-04-16 | 1998-11-11 | Acciai Speciali Terni S.P.A. | New process for the production at low temperature of grain oriented electrical steel |
KR19990088437A (ko) * | 1998-05-21 | 1999-12-27 | 에모또 간지 | 철손이매우낮은고자속밀도방향성전자강판및그제조방법 |
JP3952606B2 (ja) * | 1998-08-19 | 2007-08-01 | Jfeスチール株式会社 | 磁気特性および被膜特性に優れた方向性電磁鋼板およびその製造方法 |
JP3357611B2 (ja) * | 1998-10-01 | 2002-12-16 | 川崎製鉄株式会社 | 鉄損の極めて低い高磁束密度方向性電磁鋼板の製造方法 |
JP3707268B2 (ja) * | 1998-10-28 | 2005-10-19 | Jfeスチール株式会社 | 方向性電磁鋼板の製造方法 |
JP3885391B2 (ja) * | 1998-11-20 | 2007-02-21 | Jfeスチール株式会社 | 方向性電磁鋼板の製造方法 |
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JP4123652B2 (ja) * | 1999-10-05 | 2008-07-23 | Jfeスチール株式会社 | 方向性電磁鋼板の製造方法 |
SI1752548T1 (sl) * | 2005-08-03 | 2016-09-30 | Thyssenkrupp Steel Europe Ag | Metoda za proizvodnjo magnetnega zrnato usmerjenega jeklenega traku |
BR112012020741B1 (pt) * | 2010-02-18 | 2022-07-19 | Nippon Steel Corporation | Método de produção de folha de aço para fins elétricos com grão orientado |
JP6079092B2 (ja) * | 2012-09-24 | 2017-02-15 | Jfeスチール株式会社 | 板厚0.12〜0.25mmの方向性電磁鋼板の製造方法 |
JP5780378B1 (ja) * | 2013-09-26 | 2015-09-16 | Jfeスチール株式会社 | 方向性電磁鋼板の製造方法 |
KR101633255B1 (ko) * | 2014-12-18 | 2016-07-08 | 주식회사 포스코 | 방향성 전기강판 및 그 제조방법 |
JP6350398B2 (ja) * | 2015-06-09 | 2018-07-04 | Jfeスチール株式会社 | 方向性電磁鋼板およびその製造方法 |
JP6418226B2 (ja) * | 2015-12-04 | 2018-11-07 | Jfeスチール株式会社 | 方向性電磁鋼板の製造方法 |
CA3004286C (en) * | 2015-12-04 | 2021-05-04 | Jfe Steel Corporation | Method of producing grain-oriented electrical steel sheet |
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KR20190078163A (ko) | 2019-07-04 |
EP3733914A1 (en) | 2020-11-04 |
US20210071280A1 (en) | 2021-03-11 |
WO2019132361A1 (ko) | 2019-07-04 |
CN111566250B (zh) | 2021-12-17 |
EP3733914A4 (en) | 2020-11-04 |
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