KR100544643B1 - 동시탈탄질화소둔을 행하는 저온재가열 방향성 전기강판의자장 열처리방법 - Google Patents
동시탈탄질화소둔을 행하는 저온재가열 방향성 전기강판의자장 열처리방법 Download PDFInfo
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- KR100544643B1 KR100544643B1 KR1020010083798A KR20010083798A KR100544643B1 KR 100544643 B1 KR100544643 B1 KR 100544643B1 KR 1020010083798 A KR1020010083798 A KR 1020010083798A KR 20010083798 A KR20010083798 A KR 20010083798A KR 100544643 B1 KR100544643 B1 KR 100544643B1
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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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- Engineering & Computer Science (AREA)
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- Materials Engineering (AREA)
- Mechanical 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) | 자왜개선율(%) |
60 | 53 |
80 | 50 |
100 | 32 |
120 | 16 |
Claims (4)
- 중량%로 C:0.025∼0.08%, Si:2.5∼4.5%, Sol-Al:0.020∼0.040%, N:0.0150%이하, Mn:0.07∼0.25%, S:0.005∼0.015%, B:0.0005∼0.0010%, 나머지 Fe와 기타 불가피하게 함유되는 불순물로 이루어지는 슬라브를 1150∼1325℃의 온도범위내에서 다음의 조건Ts-20≤슬라브 가열온도≤Ts+20을 만족하는 슬라브가열온도에서 1∼4시간 유지하여 가열하는 단계,가열된 슬라브를 열간압연, 예비소둔, 냉간압연하여 냉연판을 얻는 단계,상기 냉연판을 함질소 혼합가스의 습윤분위기에서 900∼1050℃의 온도로 1∼10분간 1차재결정, 탈탄소둔 및 질화소둔을 동시에 행하는 단계,이어 최종마무리소둔한 후 장력코팅공정을 포함하여 이루어지는 저온재가열 방향성 전기강판의 제조방법에 있어서,상기 장력코팅하고 코팅층의 경화를 위한 냉각하는 공정에서,720~350℃사이에 강판의 폭방향으로 펄스폭 10~40ms, 주파수 2~8Hz 의 펄스자장을 100~600 Oe의 세기로 인가를 개시하여 120℃/sec이하의 속도로 냉각하면서 200℃이전에서 자장인가를 종료하는 자장열처리 단계를 포함하고, -5Mpa~+4Mpa의 응력을 적용하여 사용하는 동시탈탄질화소둔을 행하는 저온재가열 방향성 전기강판의 자장열처리방법.
- 제 1항에 있어서, 상기 펄스자장과 함께 10 Oe 이상의 바이어스 직류자장을 강판 의 폭방향으로 인가하는 것을 특징으로 하는 동시탈탄질화소둔을 행하는 저온재가열 방향성 전기강판의 자장열처리방법.
- 제 1항에 있어서, 상기 냉각속도는 50~120℃/sec임을 특징으로 하는 동시탈탄질화소둔을 행하는 저온재가열 방향성 전기강판의 자장열처리방법.
- 제 1항 내지 제 3항에 있어서, 상기 장력코팅한 강판의 길이방향으로 2~25Mpa의 인장응력을 부여하면서 자장열처리하는 것을 특징으로 하는 동시탈탄질화소둔을 행하는 저온재가열 방향성 전기강판의 자장열처리방법.
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Families Citing this family (2)
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KR101906962B1 (ko) * | 2016-12-22 | 2018-10-11 | 주식회사 포스코 | 방향성 전기강판용 소둔 분리제 조성물, 방향성 전기강판 및 방향성 전기강판의 제조방법 |
KR101919546B1 (ko) * | 2018-07-12 | 2018-11-16 | 주식회사 포스코 | 방향성 전기강판용 소둔 분리제 조성물, 방향성 전기강판 및 방향성 전기강판의 제조방법 |
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 |
KR20000067565A (ko) * | 1999-04-29 | 2000-11-25 | 이구택 | 고자속밀도 방향성 전기강판의 제조방법 |
KR100345722B1 (ko) * | 1999-12-28 | 2002-07-27 | 주식회사 포스코 | 저자왜 방향성 전기강판의 제조방법 및 이에 사용되는제조장치 |
KR100345744B1 (ko) * | 1997-12-13 | 2002-09-18 | 주식회사 포스코 | 저자왜방향성전기강판의제조방법및이에사용되는자속열처리장치 |
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2001
- 2001-12-24 KR KR1020010083798A patent/KR100544643B1/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 |
KR100345744B1 (ko) * | 1997-12-13 | 2002-09-18 | 주식회사 포스코 | 저자왜방향성전기강판의제조방법및이에사용되는자속열처리장치 |
KR20000067565A (ko) * | 1999-04-29 | 2000-11-25 | 이구택 | 고자속밀도 방향성 전기강판의 제조방법 |
KR100345722B1 (ko) * | 1999-12-28 | 2002-07-27 | 주식회사 포스코 | 저자왜 방향성 전기강판의 제조방법 및 이에 사용되는제조장치 |
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