KR100544641B1 - 자기특성이 우수한 자기변형이 적은 방향성 전기강판의제조방법 - Google Patents
자기특성이 우수한 자기변형이 적은 방향성 전기강판의제조방법 Download PDFInfo
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- KR100544641B1 KR100544641B1 KR1020010083796A KR20010083796A KR100544641B1 KR 100544641 B1 KR100544641 B1 KR 100544641B1 KR 1020010083796 A KR1020010083796 A KR 1020010083796A KR 20010083796 A KR20010083796 A KR 20010083796A KR 100544641 B1 KR100544641 B1 KR 100544641B1
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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 by deformation combined with, or followed by, heat treatment
- C21D8/12—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of articles with special electromagnetic properties
- C21D8/1277—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of articles with special electromagnetic properties involving a particular surface treatment
- C21D8/1288—Application of a tension-inducing coating
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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
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/06—Surface hardening
- C21D1/09—Surface hardening by direct application of electrical or wave energy; by particle radiation
- C21D1/10—Surface hardening by direct application of electrical or wave energy; by particle radiation by electric induction
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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
- C21D6/00—Heat treatment of ferrous alloys
- C21D6/008—Heat treatment of ferrous alloys containing Si
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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 by deformation combined with, or followed by, heat treatment
- C21D8/12—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of articles with special electromagnetic properties
- C21D8/1216—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of articles with special electromagnetic properties the working step(s) being of interest
- 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 by deformation combined with, or followed by, heat treatment
- C21D8/12—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of articles with special electromagnetic properties
- C21D8/1216—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of articles with special electromagnetic properties the working step(s) being of interest
- 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 by deformation combined with, or followed by, heat treatment
- C21D8/12—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of articles with special electromagnetic properties
- C21D8/1244—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of articles with special electromagnetic properties the heat treatment(s) being of interest
- C21D8/125—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of articles with special electromagnetic properties the heat treatment(s) being of interest with application of tension
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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 by deformation combined with, or followed by, heat treatment
- C21D8/12—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of articles with special electromagnetic properties
- C21D8/1244—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of articles with special electromagnetic properties the heat treatment(s) being of interest
- C21D8/1255—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of articles with special electromagnetic properties the heat treatment(s) being of interest with diffusion of elements, e.g. decarburising, nitriding
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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
- C22C38/02—Ferrous alloys, e.g. steel alloys containing silicon
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- Mechanical Engineering (AREA)
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- Crystallography & Structural Chemistry (AREA)
- Electromagnetism (AREA)
- Manufacturing & Machinery (AREA)
- Soft Magnetic Materials (AREA)
Abstract
Description
냉각속도(℃/초) | 자기변형개선율(%) |
60 | 53 |
80 | 51 |
100 | 38 |
120 | 16 |
Claims (4)
- 중량%로, C:0.02~0.1%, Si:1.0~4.8%, S:0.006%이하, 산가용성 Al:0.01~0.05%, Mn:0.05~0.2%, N:0.005%이하, 여기에 Zr:0.015~0.05% 또는 Ce:0.015~0.07%의 1종 또는 2종, 나머지 Fe와 불가피한 불순물로 조성되는 강슬라브를 1200~1300℃에서 재가열하여 열간압연하는 단계,열연판소둔, 냉간압연, 탈탄 및 질화소둔을 동시 혹은 잇달아 탈탄질화처리하여 AlN을 형성한 다음 최종소둔하는 단계,최종소둔판에 장력코팅하여 코팅층의 경화를 위한 냉각하는 공정에서,상기 강판의 폭방향으로 펄스폭 20~50ms, 주파수 2~7Hz의 펄스자장을 300~800 Oe의 세기로 720~350℃사이에서 인가를 개시하여 120℃/sec이하의 속도로 냉각하면서 200℃ 이전에서 자장인가를 종료하는 자장열처리 단계를 포함하고, -5Mpa~+4Mpa의 응력을 적용하여 사용하는 것을 특징으로 하는 자기변형이 적은 방향성 전기강판의 제조방법.
- 제 1항에 있어서, 상기 펄스자장과 함께 10 Oe 이상의 바이어스 직류자장을 강판의 폭방향으로 인가하는 것을 특징으로 하는 자기변형이 적은 방향성 전기강판의 제조방법.
- 제 1항에 있어서, 상기 냉각속도는 50~120℃/sec임을 특징으로 하는 자기변형이 적은 방향성 전기강판의 제조방법.
- 제 1항 내지 제 3항에 있어서, 상기 장력코팅한 강판의 길이방향으로 2~25Mpa의 인장응력을 부여하면서 자장열처리하는 것을 특징으로 하는 자기변형이 적은 방향성 전기강판의 제조방법.
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KR1020010083796A KR100544641B1 (ko) | 2001-12-24 | 2001-12-24 | 자기특성이 우수한 자기변형이 적은 방향성 전기강판의제조방법 |
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KR1020010083796A KR100544641B1 (ko) | 2001-12-24 | 2001-12-24 | 자기특성이 우수한 자기변형이 적은 방향성 전기강판의제조방법 |
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KR20030053794A KR20030053794A (ko) | 2003-07-02 |
KR100544641B1 true KR100544641B1 (ko) | 2006-01-24 |
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Families Citing this family (4)
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KR101010145B1 (ko) * | 2010-10-14 | 2011-01-24 | 장영수 | 칸막이용 지지구 |
CN105689691A (zh) * | 2014-11-27 | 2016-06-22 | 上海梅山钢铁股份有限公司 | 一种提高低碳高硅钢钢坯等轴晶率的方法 |
CN109868345B (zh) * | 2019-02-27 | 2020-11-24 | 河北工程大学 | 一种具有多形貌多尺度奥氏体组织的高强塑积冷轧中锰trip钢及其制备方法 |
CN115341077B (zh) * | 2022-07-25 | 2023-08-29 | 北京科技大学 | 一种轴承钢及其球化退火方法 |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0463228A (ja) * | 1990-07-02 | 1992-02-28 | Nippon Steel Corp | 磁性焼鈍前後の磁気特性の優れた無方向性電磁鋼板の製造方法 |
JPH08134551A (ja) * | 1994-11-07 | 1996-05-28 | Nippon Steel Corp | 鉄損及び磁歪特性の優れた一方向性電磁鋼板の製造方法 |
KR19990049605A (ko) * | 1997-12-13 | 1999-07-05 | 이구택 | 저자왜 방향성 전기강판의 제조방법 및 이에 사용되는 자속열처리장치 |
KR20010061455A (ko) * | 1999-12-28 | 2001-07-07 | 이구택 | 저자왜 방향성 전기강판의 제조방법과 이에 사용되는제조장치 |
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- 2001-12-24 KR KR1020010083796A patent/KR100544641B1/ko active IP Right Grant
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0463228A (ja) * | 1990-07-02 | 1992-02-28 | Nippon Steel Corp | 磁性焼鈍前後の磁気特性の優れた無方向性電磁鋼板の製造方法 |
JPH08134551A (ja) * | 1994-11-07 | 1996-05-28 | Nippon Steel Corp | 鉄損及び磁歪特性の優れた一方向性電磁鋼板の製造方法 |
KR19990049605A (ko) * | 1997-12-13 | 1999-07-05 | 이구택 | 저자왜 방향성 전기강판의 제조방법 및 이에 사용되는 자속열처리장치 |
KR20010061455A (ko) * | 1999-12-28 | 2001-07-07 | 이구택 | 저자왜 방향성 전기강판의 제조방법과 이에 사용되는제조장치 |
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