KR20010058079A - 고자속밀도 방향성 전기강판의 최종고온소둔방법 - Google Patents
고자속밀도 방향성 전기강판의 최종고온소둔방법 Download PDFInfo
- Publication number
- KR20010058079A KR20010058079A KR1019990061556A KR19990061556A KR20010058079A KR 20010058079 A KR20010058079 A KR 20010058079A KR 1019990061556 A KR1019990061556 A KR 1019990061556A KR 19990061556 A KR19990061556 A KR 19990061556A KR 20010058079 A KR20010058079 A KR 20010058079A
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- South Korea
- Prior art keywords
- annealing
- steel sheet
- content
- temperature
- oriented electrical
- Prior art date
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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
- C21D8/1272—Final recrystallisation annealing
-
- 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
- C21D5/00—Heat treatments of cast-iron
-
- 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
-
- 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
-
- 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
-
- 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
- C21D8/1261—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 following hot rolling
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C37/00—Cast-iron alloys
- C22C37/10—Cast-iron alloys containing aluminium or silicon
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Crystallography & Structural Chemistry (AREA)
- Thermal Sciences (AREA)
- Electromagnetism (AREA)
- Manufacturing & Machinery (AREA)
- Manufacturing Of Steel Electrode Plates (AREA)
- Soft Magnetic Materials (AREA)
Abstract
Description
구분 | Al함량 | 온도구간별승온속도(℃/hr) | 자기적특성 | 표면품질(밀착성:mmΦ) | ||
저온→중간 | 중간→고온 | 철손(W17/50) | 자속밀도(810) | |||
비교재1 | 0.021 | 15.7 | 15.7 | 1.16 | 1.88 | 30 |
비교재2 | 0.021 | 15.7 | 18 | 1.14 | 1.90 | 30 |
비교재3 | 0.02 | 18 | 15.7 | 1.15 | 1.89 | 30 |
비교재4 | 0.022 | 18 | 18 | 1.16 | 1.88 | 30 |
비교재5 | 0.021 | 18 | 21 | 1.05 | 1.91 | 30 |
발명재1 | 0.022 | 19 | 15 | 1.03 | 1.92 | 30 |
발명재2 | 0.02 | 21 | 15 | 1.04 | 1.91 | 30 |
비교재6 | 0.020 | 21 | 21 | 1.06 | 1.89 | 40 |
저온:600∼750℃중간:950∼1050℃고온:1200℃이상 |
구분 | Al함량 | 온도구간별승온속도(℃/hr) | 자기적특성 | 표면품질(밀착성:mmΦ) | ||
저온→중간 | 중간→고온 | 철손(W17/50) | 자속밀도(810) | |||
비교재1 | 0.026 | 13 | 13 | 1.06 | 1.89 | 30 |
비교재2 | 0.027 | 13 | 15.7 | 1.06 | 1.90 | 30 |
비교재3 | 0.027 | 13 | 21 | 1.04 | 1.90 | 30 |
발명재1 | 0.029 | 15.7 | 13 | 1.02 | 1.93 | 30 |
발명재2 | 0.029 | 15.7 | 15 | 1.02 | 1.93 | 30 |
비교재4 | 0.029 | 15.7 | 21 | 1.04 | 1.90 | 30 |
저온:600∼750℃중간:950∼1050℃고온:1200℃이상 |
Claims (2)
- Al을 0.015∼0.035% 함유하는 규소강 슬라브를 열간압연, 열연판소둔, 1회 또는 2회의 냉간압연, 탈탄소둔 및 최종고온소둔하여 고자속밀도 방향성전기강판을 제조하는 방법에 있어서,상기 최종고온소둔은,(a) 규소강의 Al의 함량이 150∼230ppm의 경우에는 600∼750℃에서 950∼1050℃까지는 19∼23℃/hr의 속도로 승온한 다음, 1200℃이상까지는 13∼17℃/hr의 속도로 승온하고,(b) 규소강의 Al의 함량이 240∼350ppm의 경우에는 600∼750℃에서 950∼1050℃까지는 15∼17℃/hr의 속도로 승온하고, 1200℃이상까지는 13∼17℃/hr의 속도로 승온하는 것을 포함하여 이루어지는 고자속밀도 방향성 전기강판의 최종소둔방법.
- 제 1항에 있어서, 상기 규소강은 중량%로 C:2.80∼3.50%, Si:2.80∼3.50%, Mn:0.06∼0.09%, S:0.01∼0.03%, Al:0.015∼0.035%, N:0.007∼0.010%을 포함하여 이루어짐을 특징으로 하는 고자속밀도 방향성 전기강판의 최종소둔방법.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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KR1019990061556A KR100627453B1 (ko) | 1999-12-24 | 1999-12-24 | 고자속밀도 방향성 전기강판의 최종고온소둔방법 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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KR1019990061556A KR100627453B1 (ko) | 1999-12-24 | 1999-12-24 | 고자속밀도 방향성 전기강판의 최종고온소둔방법 |
Publications (2)
Publication Number | Publication Date |
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KR20010058079A true KR20010058079A (ko) | 2001-07-05 |
KR100627453B1 KR100627453B1 (ko) | 2006-09-22 |
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KR1019990061556A KR100627453B1 (ko) | 1999-12-24 | 1999-12-24 | 고자속밀도 방향성 전기강판의 최종고온소둔방법 |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100721820B1 (ko) * | 2005-12-22 | 2007-05-28 | 주식회사 포스코 | 자속밀도가 우수한 무방향성 전기강판 제조방법 |
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1999
- 1999-12-24 KR KR1019990061556A patent/KR100627453B1/ko active IP Right Grant
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100721820B1 (ko) * | 2005-12-22 | 2007-05-28 | 주식회사 포스코 | 자속밀도가 우수한 무방향성 전기강판 제조방법 |
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KR100627453B1 (ko) | 2006-09-22 |
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