KR102175065B1 - 무방향성 전기강판 및 그 제조방법 - Google Patents
무방향성 전기강판 및 그 제조방법 Download PDFInfo
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Abstract
Description
| 실시예 | Si | Mn | Al | P | S | N | C | Ti | Bi | Ga |
| 비교재1 | 3.155 | 0.0921 | 0.082 | 0.0388 | 0.0018 | 0.0016 | 0.0018 | 0.0015 | 0 | 0 |
| 비교재2 | 3.31 | 0.445 | 0.051 | 0.0094 | 0.0017 | 0.0013 | 0.0027 | 0.0012 | 0.0017 | 0 |
| 비교재3 | 3.144 | 0.25 | 0.155 | 0.0107 | 0.0015 | 0.0016 | 0.0025 | 0.0009 | 0 | 0.001 |
| 발명재1 | 3.335 | 0.923 | 0.465 | 0.034 | 0.0026 | 0.0019 | 0.0021 | 0.001 | 0.0008 | 0.0021 |
| 발명재2 | 3.214 | 0.917 | 0.504 | 0.0483 | 0.0013 | 0.0015 | 0.003 | 0.0017 | 0.0029 | 0.0011 |
| 발명재3 | 3.157 | 0.627 | 0.616 | 0.0122 | 0.0019 | 0.0017 | 0.0026 | 0.0015 | 0.0014 | 0.0016 |
| 발명재4 | 3.201 | 0.714 | 0.604 | 0.009 | 0.0018 | 0.0014 | 0.0024 | 0.002 | 0.0021 | 0.0009 |
| 발명재5 | 3.057 | 0.427 | 0.674 | 0.0081 | 0.0019 | 0.0017 | 0.0026 | 0.0015 | 0.0004 | 0.0023 |
| 발명재6 | 2.952 | 0.394 | 0.355 | 0.0075 | 0.002 | 0.0018 | 0.002 | 0.0019 | 0.0006 | 0.0027 |
| 실시예 | 열연판 소둔온도(℃) | 최종 소둔온도(℃) | 최종 소둔시간 (s) | 식 3 | 철손 W15/50 (W/kg) | 식 1 (W/kg) |
| 비교재1 | 1,020 | 1,070 | 75 | 14,552 | 2.38 | 0.14 |
| 비교재2 | 1,080 | 1,030 | 86 | 12,935 | 2.34 | 0.09 |
| 비교재3 | 1,080 | 1,020 | 92 | 11,974 | 2.31 | 0.07 |
| 발명재1 | 980 | 1,020 | 92 | 10,865 | 2.3 | 0.05 |
| 발명재2 | 980 | 1,010 | 100 | 9,898 | 2.29 | 0.04 |
| 발명재3 | 980 | 1,010 | 109 | 9,081 | 2.29 | 0.04 |
| 발명재4 | 1,080 | 990 | 120 | 8,910 | 2.28 | 0.03 |
| 발명재5 | 980 | 980 | 120 | 8,003 | 2.27 | 0.02 |
| 발명재6 | 1,000 | 950 | 120 | 7,917 | 2.24 | 0.01 |
Claims (12)
- 중량%로, Si: 0.2 내지 4.3%, Mn: 0.05 내지 2.5%, Al: 0.1 내지 2.1%, Bi: 0.0001내지 0.003% 및 Ga: 0.0001내지 0.003% 포함하고, 잔부 Fe 및 불가피한 불순물을 포함하고, 하기 식 2를 만족하는 무방향성 전기강판.
[식 2]
0.002 ≤ [Bi] + [Ga] ≤ 0.005
(식 2에서, [Bi], [Ga]는 각각 Bi, Ga의 함량(중량%)을 나타낸다.) - 제1항에 있어서,
하기 식 1을 만족하는 무방향성 전기강판.
[식 1]
[전단 가공 이후 철손(W15/50)] - [방전 가공 이후 철손(W15/50)] ≤ 0.05(W/kg) - 제1항에 있어서,
C, S, N 및 Ti 중 1종 이상을 각각 0.005 중량% 이하로 더 포함하는 무방향성 전기강판. - 제1항에 있어서,
P, Sn 및 Sb 중 1종 이상을 각각 0.2 중량% 이하로 더 포함하는 무방향성 전기강판. - 제1항에 있어서,
Cu, Ni 및 Cr 중 1종 이상을 각각 0.05 중량% 이하로 더 포함하는 무방향성 전기강판. - 제1항에 있어서,
Zr, Mo 및 V 중 1종 이상을 각각 0.01 중량% 이하로 더 포함하는 무방향성 전기강판. - 삭제
- 중량%로, Si: 0.2 내지 4.3%, Mn: 0.05 내지 2.5%, Al: 0.1 내지 2.1%, Bi: 0.0001내지 0.003% 및 Ga: 0.0001내지 0.003% 포함하고, 잔부 Fe 및 불가피한 불순물을 포함하고, 하기 식 2를 만족하는 슬라브를 가열하는 단계;
상기 슬라브를 열간 압연하여 열연판을 제조하는 단계;
상기 열연판을 냉간압연하여 냉연판을 제조하는 단계 및
상기 냉연판을 최종 소둔하는 단계를 포함하는 무방향성 전기강판의 제조방법.
[식 2]
0.002 ≤ [Bi] + [Ga] ≤ 0.005
(식 2에서, [Bi], [Ga]는 각각 슬라브 내의 Bi, Ga의 함량(중량%)을 나타낸다.) - 제8항에 있어서,
상기 열연판을 제조하는 단계 이후,
상기 열연판을 소둔하는 단계를 더 포함하는 무방향성 전기강판의 제조방법. - 제9항에 있어서,
하기 식 3을 만족하는 무방향성 전기강판의 제조방법.
[식 3]
[열연판 소둔 온도(℃)]×[최종 소둔 온도(℃)] / [최종 소둔 시간(S)] ≤ 11000 - 제9항에 있어서,
상기 열연판을 열연판 소둔하는 단계에서 900 내지 1150℃에서 1 내지 5분 동안 소둔하는 무방향성 전기강판의 제조 방법. - 제8항에 있어서,
상기 최종 소둔하는 단계에서, 900℃ 내지 1100℃에서 60 내지 180초 동안 소둔하는 무방향성 전기강판의 제조 방법.
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| Application Number | Priority Date | Filing Date | Title |
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| KR1020180152977A KR102175065B1 (ko) | 2018-11-30 | 2018-11-30 | 무방향성 전기강판 및 그 제조방법 |
| CN201980078877.3A CN113166878A (zh) | 2018-11-30 | 2019-11-26 | 无取向电工钢板及其制备方法 |
| PCT/KR2019/016380 WO2020111736A2 (ko) | 2018-11-30 | 2019-11-26 | 무방향성 전기강판 및 그 제조방법 |
| US17/297,731 US12215400B2 (en) | 2018-11-30 | 2019-11-26 | Non-directional electrical steel sheet and method for producing same |
| EP19890083.9A EP3889289A2 (en) | 2018-11-30 | 2019-11-26 | Non-directional electrical steel sheet and method for producing same |
| JP2021531072A JP7350069B2 (ja) | 2018-11-30 | 2019-11-26 | 無方向性電磁鋼板およびその製造方法 |
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| KR102464576B1 (ko) * | 2022-05-27 | 2022-11-09 | 주식회사 썸백 | 무방향성 전기강판 및 그 제조방법 |
| CN119998482A (zh) * | 2022-10-14 | 2025-05-13 | 杰富意钢铁株式会社 | 无取向性电磁钢板及其制造方法 |
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| JPS58130772A (ja) * | 1982-01-26 | 1983-08-04 | Matsushita Electric Ind Co Ltd | 定電圧電源装置 |
| JP4203238B2 (ja) * | 2001-12-03 | 2008-12-24 | 新日本製鐵株式会社 | 一方向性電磁鋼板の製造方法 |
| CN101218362B (zh) | 2005-07-07 | 2010-05-12 | 住友金属工业株式会社 | 无方向性电磁钢板及其制造方法 |
| JP4979904B2 (ja) | 2005-07-28 | 2012-07-18 | 新日本製鐵株式会社 | 電磁鋼板の製造方法 |
| JP4681689B2 (ja) | 2009-06-03 | 2011-05-11 | 新日本製鐵株式会社 | 無方向性電磁鋼板及びその製造方法 |
| JP5712491B2 (ja) | 2010-03-12 | 2015-05-07 | Jfeスチール株式会社 | 方向性電磁鋼板の製造方法 |
| JP5533958B2 (ja) | 2012-08-21 | 2014-06-25 | Jfeスチール株式会社 | 打抜加工による鉄損劣化の小さい無方向性電磁鋼板 |
| JP5668767B2 (ja) | 2013-02-22 | 2015-02-12 | Jfeスチール株式会社 | 無方向性電磁鋼板製造用の熱延鋼板およびその製造方法 |
| JP2014185365A (ja) | 2013-03-22 | 2014-10-02 | Jfe Steel Corp | 高周波鉄損特性に優れる無方向性電磁鋼板 |
| CN104674136B (zh) * | 2013-11-28 | 2017-11-14 | Posco公司 | 导磁率优良的无取向电工钢板及其制造方法 |
| WO2016002904A1 (ja) | 2014-07-02 | 2016-01-07 | 新日鐵住金株式会社 | 無方向性電磁鋼板及びその製造方法 |
| BR112017001223B1 (pt) | 2014-08-20 | 2021-03-09 | Jfe Steel Corporation | chapa de aço eletromagnética não orientada |
| KR102177038B1 (ko) | 2014-11-14 | 2020-11-10 | 주식회사 포스코 | 방향성 전기강판용 절연피막 조성물, 이를 이용하여 표면에 절연피막이 형성된 방향성 전기강판 및 이의 제조방법 |
| KR20160061797A (ko) * | 2014-11-24 | 2016-06-01 | 주식회사 포스코 | 무방향성 전기강판, 및 이의 제조방법 |
| JP6390876B2 (ja) | 2015-08-04 | 2018-09-19 | Jfeスチール株式会社 | 磁気特性に優れる無方向性電磁鋼板の製造方法 |
| KR101705235B1 (ko) | 2015-12-11 | 2017-02-09 | 주식회사 포스코 | 무방향성 전기강판 및 그 제조방법 |
| KR101701194B1 (ko) * | 2015-12-23 | 2017-02-01 | 주식회사 포스코 | 무방향성 전기강판 및 그 제조방법 |
| KR101728827B1 (ko) | 2015-12-24 | 2017-04-20 | 주식회사 포스코 | 무방향성 전기강판 및 그 제조방법 |
| KR101904309B1 (ko) | 2016-12-19 | 2018-10-04 | 주식회사 포스코 | 무방향성 전기강판 및 그 제조방법 |
| KR101902438B1 (ko) | 2016-12-19 | 2018-09-28 | 주식회사 포스코 | 무방향성 전기강판 및 그 제조방법 |
| KR101918720B1 (ko) | 2016-12-19 | 2018-11-14 | 주식회사 포스코 | 무방향성 전기강판 및 그 제조방법 |
| KR101919529B1 (ko) | 2016-12-20 | 2018-11-16 | 주식회사 포스코 | 무방향성 전기강판 및 그 제조방법 |
| KR102176351B1 (ko) | 2018-11-30 | 2020-11-09 | 주식회사 포스코 | 무방향성 전기강판 및 그 제조방법 |
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2018
- 2018-11-30 KR KR1020180152977A patent/KR102175065B1/ko active Active
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2019
- 2019-11-26 CN CN201980078877.3A patent/CN113166878A/zh active Pending
- 2019-11-26 JP JP2021531072A patent/JP7350069B2/ja active Active
- 2019-11-26 US US17/297,731 patent/US12215400B2/en active Active
- 2019-11-26 WO PCT/KR2019/016380 patent/WO2020111736A2/ko not_active Ceased
- 2019-11-26 EP EP19890083.9A patent/EP3889289A2/en active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| CN113166878A (zh) | 2021-07-23 |
| JP7350069B2 (ja) | 2023-09-25 |
| KR20200066493A (ko) | 2020-06-10 |
| US20220049322A1 (en) | 2022-02-17 |
| EP3889289A4 (en) | 2021-10-06 |
| JP2022509676A (ja) | 2022-01-21 |
| US12215400B2 (en) | 2025-02-04 |
| WO2020111736A2 (ko) | 2020-06-04 |
| EP3889289A2 (en) | 2021-10-06 |
| WO2020111736A3 (ko) | 2020-08-06 |
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