KR100544642B1 - 고자속밀도 방향성전기강판의 자장열처리방법 - Google Patents
고자속밀도 방향성전기강판의 자장열처리방법 Download PDFInfo
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- KR100544642B1 KR100544642B1 KR1020010083797A KR20010083797A KR100544642B1 KR 100544642 B1 KR100544642 B1 KR 100544642B1 KR 1020010083797 A KR1020010083797 A KR 1020010083797A KR 20010083797 A KR20010083797 A KR 20010083797A KR 100544642 B1 KR100544642 B1 KR 100544642B1
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- magnetic field
- steel sheet
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- electrical steel
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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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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Electromagnetism (AREA)
- Manufacturing & Machinery (AREA)
- Soft Magnetic Materials (AREA)
Abstract
Description
냉각속도(℃/초) | 자기변형개선율(%) |
60 | 50 |
80 | 47 |
100 | 34 |
120 | 12 |
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:0.010%이하, B:0.001~0.012%, 나머지 Fe 및 기타 불가피한 불순물로 이루어진 강 슬라브를 1200~1300℃에서 재가열하여 열간압연한 후, 다음의 조건, 1360 - 11,111 x [Sol. Al(wt%)] ± 100℃을 만족하는 온도범위에서 열연소둔하고, 냉간압연한 다음, 탈탄 및 질화소둔을 동시 혹은 잇달아 행하여 AlN을 형성시키고, 최종마무리소둔한 후 장력코팅공정을 포함하여 이루어지는 고자속밀도 방향성 전기강판의 제조방법에 있어서,상기 장력코팅하고 코팅층의 경화를 위한 냉각하는 공정에서,상기 강판의 폭방향으로 펄스폭 10~40ms, 주파수 1~8Hz 의 펄스자장을 400~700 Oe의 세기로 720~350℃사이에서 인가를 개시하여 120℃/sec이하의 속도로 냉각하면서 200℃ 이전에서 자장인가를 종료하는 자장열처리 단계를 포함하고, -5Mpa~+4Mpa의 응력을 적용하여 사용하는 고자속밀도 방향성 전기강판의 자장열처리방법.
- 제 1항에 있어서, 상기 펄스자장과 함께 10 Oe 이상의 바이어스 직류자장을 강판의 폭방향으로 인가하는 것을 특징으로 하는 고자속밀도 방향성 전기강판의 자장열처리방법.
- 제 1항에 있어서, 상기 냉각속도는 50~120℃/sec임을 특징으로 하는 고자속밀도 방 향성 전기강판의 자장열처리방법.
- 제 1항 내지 제 3항에 있어서, 상기 장력코팅한 강판의 길이방향으로 2~25Mpa의 인장응력을 부여하면서 자장열처리하는 것을 특징으로 하는 고자속밀도 방향성 전기강판의 자장열처리방법.
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KR1020010083797A KR100544642B1 (ko) | 2001-12-24 | 2001-12-24 | 고자속밀도 방향성전기강판의 자장열처리방법 |
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KR1020010083797A KR100544642B1 (ko) | 2001-12-24 | 2001-12-24 | 고자속밀도 방향성전기강판의 자장열처리방법 |
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KR20030053795A KR20030053795A (ko) | 2003-07-02 |
KR100544642B1 true KR100544642B1 (ko) | 2006-01-24 |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
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KR101297433B1 (ko) * | 2011-03-31 | 2013-08-19 | 한국기계연구원 | 펄스자기장 처리장치 및 이를 이용한 소재 물성 향상 방법 |
Families Citing this family (2)
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KR200457983Y1 (ko) * | 2008-12-24 | 2012-01-16 | 이영희 | 음식물용 수용부가 구비된 냄비뚜껑 |
CN113553743B (zh) * | 2021-07-29 | 2023-08-11 | 西安西电变压器有限责任公司 | 一种变压器铁心接缝磁致伸缩特性等效计算方法和装置 |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4931613A (en) * | 1987-05-08 | 1990-06-05 | Allegheny Ludlum Corporation | Electrical discharge scribing for improving core loss of grain-oriented silicon steel |
JPH05311453A (ja) * | 1992-05-08 | 1993-11-22 | Nippon Steel Corp | 超低鉄損一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 |
KR100345722B1 (ko) * | 1999-12-28 | 2002-07-27 | 주식회사 포스코 | 저자왜 방향성 전기강판의 제조방법 및 이에 사용되는제조장치 |
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2001
- 2001-12-24 KR KR1020010083797A patent/KR100544642B1/ko active IP Right Grant
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4931613A (en) * | 1987-05-08 | 1990-06-05 | Allegheny Ludlum Corporation | Electrical discharge scribing for improving core loss of grain-oriented silicon steel |
JPH05311453A (ja) * | 1992-05-08 | 1993-11-22 | Nippon Steel Corp | 超低鉄損一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 |
KR100345744B1 (ko) * | 1997-12-13 | 2002-09-18 | 주식회사 포스코 | 저자왜방향성전기강판의제조방법및이에사용되는자속열처리장치 |
KR100345722B1 (ko) * | 1999-12-28 | 2002-07-27 | 주식회사 포스코 | 저자왜 방향성 전기강판의 제조방법 및 이에 사용되는제조장치 |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR101297433B1 (ko) * | 2011-03-31 | 2013-08-19 | 한국기계연구원 | 펄스자기장 처리장치 및 이를 이용한 소재 물성 향상 방법 |
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KR20030053795A (ko) | 2003-07-02 |
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