KR20200066060A - 방향성 전기강판 및 그의 제조방법 - Google Patents
방향성 전기강판 및 그의 제조방법 Download PDFInfo
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- KR20200066060A KR20200066060A KR1020180153116A KR20180153116A KR20200066060A KR 20200066060 A KR20200066060 A KR 20200066060A KR 1020180153116 A KR1020180153116 A KR 1020180153116A KR 20180153116 A KR20180153116 A KR 20180153116A KR 20200066060 A KR20200066060 A KR 20200066060A
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- C21—METALLURGY OF IRON
- 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
- 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
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- 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
- 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
- C21D8/1216—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 working steps
- C21D8/1222—Hot rolling
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- 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
- 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
- C21D8/1216—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 working steps
- C21D8/1233—Cold rolling
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- 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
- 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
- C21D8/1244—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
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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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- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/04—Ferrous alloys, e.g. steel alloys containing manganese
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F1/00—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties
- H01F1/01—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials
- H01F1/03—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity
- H01F1/12—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials
- H01F1/14—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials metals or alloys
- H01F1/147—Alloys characterised by their composition
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F1/00—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties
- H01F1/01—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials
- H01F1/03—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity
- H01F1/12—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials
- H01F1/14—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials metals or alloys
- H01F1/147—Alloys characterised by their composition
- H01F1/14766—Fe-Si based alloys
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C2202/00—Physical properties
- C22C2202/02—Magnetic
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
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- Crystallography & Structural Chemistry (AREA)
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- Dispersion Chemistry (AREA)
- Power Engineering (AREA)
- Manufacturing Of Steel Electrode Plates (AREA)
- Soft Magnetic Materials (AREA)
Abstract
Description
도 2는 비교재 2에서 제조한 방향성 전기강판의 표면을 주사 전자 현미경으로 관찰한 사진이다.
| 1100℃ 연속소둔 시간 (Min.) | 배치소둔 시간(Hr) | 1 내지 5mm 결정립 면적 분율 (%) | Goss 분율 (%) | 철손(W17/50) (W/Kg) |
비고 |
| - | - | 3 | 48 | 1.75 | 비교재 1 |
| 3 | - | 8 | 59 | 1.55 | 비교재 2 |
| - | 0.3 | 14 | 55 | 1.55 | 비교재3 |
| - | 2 | 22 | 58 | 1.27 | 발명재 1 |
| - | 3 | 51 | 72 | 1.17 | 발명재 2 |
| - | 4 | 44 | 59 | 1.23 | 발명재 3 |
| - | 5 | 48 | 57 | 1.25 | 발명재 4 |
| - | 10 | 74 | 55 | 1.48 | 비교재 4 |
Claims (14)
- 중량%로, Si:1.0% 내지 4.0%, C:0.005% 이하(0%를 제외함), Mn: 0.1 중량% 이하(0%를 제외함), S: 0.005 중량% 이하(0%를 제외함) 및 잔부는 Fe 및 불가피한 불순물을 포함하고,
전체 결정립 중 직경이 1000㎛ 내지 5000㎛ 인 결정립 면적 분율이 20 내지 70%인 방향성 전기강판. - 제1항에 있어서,
{110}<001>로부터 15˚ 이하의 각도를 이루는 결정립의 부피 분율이 40% 이상인 방향성 전기강판. - 제1항에 있어서,
외접원의 지름(D1)과 내접원의 지름(D2)의 비(D2/D1)가 0.5이상인 고스 결정립이 전체 고스 결정립 중 95 면적% 이상인 방향성 전기강판. - 슬라브를 가열하는 단계;
상기 슬라브를 열간 압연하여 열연 강판을 제조하는 단계;
상기 열연 강판을 열연판 소둔하는 단계;
상기 열연판 소둔된 열연 강판을 1차 냉간 압연하는 단계;
상기 1차 냉간 압연된 강판을 탈탄 소둔하는 단계;
상기 탈탄 소둔이 완료된 강판을 2차 냉간 압연하는 단계;
상기 2차 냉간 압연이 완료된 강판을 연속 소둔하는 단계 및
연속 소둔된 강판을 배치 소둔하는 단계를 포함하는 방향성 전기강판의 제조방법. - 제4항에 있어서,
상기 열연판 소둔하는 단계에서 탈탄과정을 포함하는 방향성 전기강판의 제조방법. - 제4항에 있어서,
상기 열연판 소둔하는 단계는 850℃ 내지 1000℃ 온도 및 이슬점 온도 50℃ 내지 70℃에서 소둔하는 방향성 전기강판의 제조방법. - 제4항에 있어서,
상기 1차 냉간 압연된 강판을 탈탄 소둔하는 단계는 850℃ 내지 1000℃ 온도 및 이슬점 온도 50℃ 내지 70℃에서 소둔하는 방향성 전기강판의 제조방법. - 제4항에 있어서,
상기 1차 냉간 압연된 강판을 탈탄 소둔하는 단계는 오스테나이트 단상영역 또는 페라이트 및 오스테나이트의 복합상이 존재하는 영역에서 소둔하는 방향성 전기강판의 제조방법. - 제4항에 있어서,
상기 1차 냉간 압연된 강판을 탈탄 소둔하는 단계이후, 결정립의 평균 직경이 150 내지 250㎛인 방향성 전기강판의 제조방법. - 제4항에 있어서,
상기 1차 냉간 압연된 강판을 탈탄 소둔하는 단계 및 상기 탈탄 소둔이 완료된 강판을 2차 냉간 압연하는 단계는 2회 이상 반복되는 방향성 전기강판의 제조방법. - 제4항에 있어서,
상기 연속 소둔하는 단계는 850℃ 내지 1000℃ 온도 및 이슬점 온도 50℃ 내지 70℃에서 소둔하는 방향성 전기강판의 제조방법. - 제4항에 있어서,
상기 연속 소둔하는 단계는 1 내지 5분 동안 소둔하는 방향성 전기강판의 제조방법. - 제4항에 있어서,
상기 배치 소둔하는 단계는 1000℃ 내지 1200℃ 온도 및 이슬점 온도 -20℃ 이하에서 소둔하는 방향성 전기강판의 제조방법. - 제4항에 있어서,
상기 배치 소둔하는 단계는 1 내지 8 시간 동안 소둔하는 방향성 전기강판의 제조방법.
Priority Applications (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020180153116A KR102177044B1 (ko) | 2018-11-30 | 2018-11-30 | 방향성 전기강판 및 그의 제조방법 |
| PCT/KR2019/016382 WO2020111738A2 (ko) | 2018-11-30 | 2019-11-26 | 방향성 전기강판 및 그의 제조방법 |
| JP2021531053A JP7312255B2 (ja) | 2018-11-30 | 2019-11-26 | 方向性電磁鋼板およびその製造方法 |
| CN201980079340.9A CN113166882A (zh) | 2018-11-30 | 2019-11-26 | 取向电工钢板及其制造方法 |
| JP2023062393A JP7640604B2 (ja) | 2018-11-30 | 2023-04-06 | 方向性電磁鋼板およびその製造方法 |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020180153116A KR102177044B1 (ko) | 2018-11-30 | 2018-11-30 | 방향성 전기강판 및 그의 제조방법 |
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| Publication Number | Publication Date |
|---|---|
| KR20200066060A true KR20200066060A (ko) | 2020-06-09 |
| KR102177044B1 KR102177044B1 (ko) | 2020-11-10 |
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| Country | Link |
|---|---|
| JP (2) | JP7312255B2 (ko) |
| KR (1) | KR102177044B1 (ko) |
| CN (1) | CN113166882A (ko) |
| WO (1) | WO2020111738A2 (ko) |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| KR20230095281A (ko) * | 2021-12-22 | 2023-06-29 | 주식회사 포스코 | 방향성 전기강판 및 그의 제조방법 |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003201515A (ja) * | 2002-01-09 | 2003-07-18 | Jfe Steel Kk | 磁束密度が高くかつ鉄損の低い方向性電磁鋼板の製造方法 |
| KR101719232B1 (ko) * | 2015-12-23 | 2017-03-23 | 주식회사 포스코 | 방향성 전기강판 및 이의 제조방법 |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09143560A (ja) * | 1995-11-14 | 1997-06-03 | Kawasaki Steel Corp | 高磁束密度方向性けい素鋼板の製造方法 |
| JP3482833B2 (ja) * | 1996-10-21 | 2004-01-06 | Jfeスチール株式会社 | 鉄損特性、耐歪特性および実機での磁気特性に優れた方向性電磁鋼板 |
| EP1279747B1 (en) * | 2001-07-24 | 2013-11-27 | JFE Steel Corporation | A method of manufacturing grain-oriented electrical steel sheets |
| CN101545072B (zh) * | 2008-03-25 | 2012-07-04 | 宝山钢铁股份有限公司 | 一种高电磁性能取向硅钢的生产方法 |
| JP5286872B2 (ja) * | 2008-03-26 | 2013-09-11 | 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 |
| KR20120096036A (ko) * | 2009-11-25 | 2012-08-29 | 타타 스틸 이즈무이덴 베.뷔. | 결정립 배향 전기 강 스트립의 제조 방법 및 이에 의해 제조된 결정립 배향 전기 강 |
| JP4840518B2 (ja) * | 2010-02-24 | 2011-12-21 | Jfeスチール株式会社 | 方向性電磁鋼板の製造方法 |
| JP5644154B2 (ja) * | 2010-03-29 | 2014-12-24 | Jfeスチール株式会社 | 方向性電磁鋼板の製造方法 |
| KR101223115B1 (ko) * | 2010-12-23 | 2013-01-17 | 주식회사 포스코 | 자성이 우수한 방향성 전기강판 및 이의 제조방법 |
| KR101642281B1 (ko) * | 2014-11-27 | 2016-07-25 | 주식회사 포스코 | 방향성 전기강판 및 이의 제조방법 |
| KR101657467B1 (ko) * | 2014-12-18 | 2016-09-19 | 주식회사 포스코 | 방향성 전기강판 및 이의 제조방법 |
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2018
- 2018-11-30 KR KR1020180153116A patent/KR102177044B1/ko active Active
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- 2019-11-26 CN CN201980079340.9A patent/CN113166882A/zh active Pending
- 2019-11-26 JP JP2021531053A patent/JP7312255B2/ja active Active
- 2019-11-26 WO PCT/KR2019/016382 patent/WO2020111738A2/ko not_active Ceased
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- 2023-04-06 JP JP2023062393A patent/JP7640604B2/ja active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003201515A (ja) * | 2002-01-09 | 2003-07-18 | Jfe Steel Kk | 磁束密度が高くかつ鉄損の低い方向性電磁鋼板の製造方法 |
| KR101719232B1 (ko) * | 2015-12-23 | 2017-03-23 | 주식회사 포스코 | 방향성 전기강판 및 이의 제조방법 |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2023089089A (ja) | 2023-06-27 |
| JP7312255B2 (ja) | 2023-07-20 |
| JP7640604B2 (ja) | 2025-03-05 |
| KR102177044B1 (ko) | 2020-11-10 |
| CN113166882A (zh) | 2021-07-23 |
| WO2020111738A3 (ko) | 2020-08-13 |
| JP2022513169A (ja) | 2022-02-07 |
| WO2020111738A2 (ko) | 2020-06-04 |
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