KR20020049917A - 방향성 전기강판의 제조방법 - Google Patents
방향성 전기강판의 제조방법 Download PDFInfo
- Publication number
- KR20020049917A KR20020049917A KR1020000079242A KR20000079242A KR20020049917A KR 20020049917 A KR20020049917 A KR 20020049917A KR 1020000079242 A KR1020000079242 A KR 1020000079242A KR 20000079242 A KR20000079242 A KR 20000079242A KR 20020049917 A KR20020049917 A KR 20020049917A
- Authority
- KR
- South Korea
- Prior art keywords
- temperature
- annealing
- steel sheet
- grain
- oriented electrical
- Prior art date
Links
Classifications
-
- 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
- C21D6/00—Heat treatment of ferrous alloys
- C21D6/008—Heat treatment of ferrous alloys containing Si
-
- 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
- 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
Landscapes
- 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)
- Manufacturing Of Steel Electrode Plates (AREA)
Abstract
Description
구분 | 미스오리엔테이션 형성온도까지의승온속도(℃/hr) | 자속밀도B10(Tesla) |
비교재1 | 10 | 1.825 |
비교재2 | 30 | 1.846 |
발명재1 | 75 | 1.903 |
발명재2 | 150 | 1.928 |
발명재3 | 250 | 1.930 |
발명재4 | 350 | 1.924 |
발명재5 | 450 | 1.908 |
비교재3 | 550 | 1.885 |
비교재4 | 650 | 1.862 |
구분 | 1000~1200℃까지의승온속도(℃/hr) | 자속밀도 B10(Tesla) |
비교재a | 0.5 | 1.782 |
비교재b | 1 | 1.849 |
발명재a | 4 | 1.902 |
발명재b | 10 | 1.912 |
발명재c | 20 | 1.939 |
발명재d | 30 | 1.935 |
발명재e | 45 | 1.906 |
비교재c | 60 | 1.873 |
비교재d | 100 | 1.772 |
Claims (2)
- 중량%로, Si:2.9~3.5%, C:0.01~0.07%, Mn:0.05~0.15%, Sol-Al:0.02~0.035%, S:0.025%이하, Cu: 0.1~0.2%, 잔부 Fe 및 기타 불가피한 불순물로 조성되는 강 슬라브를 1360℃ 이하의 온도에서 가열하고 열간압연 및 열연판소둔한 다음, 최종 두께로 2차 냉간압연하고, 1차 재결정소둔, 탈탄소둔 및 질화소둔을 동시에 혹은 잇달아 실시한 후 고온소둔을 실시하는 방향성 전기강판의 제조방법에 있어서,상기 고온소둔은, 상온에서 1020~1200℃의 온도범위까지 50~500℃/hr의 승온속도로 가열하고 그 온도에서 1~30분간 유지한 후, 900~1000℃까지 냉각하고 다시 1000~1200℃의 온도범위까지 2~50℃/hr의 승온속도로 가열하고 그 온도에서 10~100시간 유지한 후 냉각하는 식으로 행해지는 것을 특징으로 하는 방향성 전기강판의 제조방법
- 제 1항에 있어서, 상기 1020~1200℃의 온도범위에서 유지한 후 900~1000℃까지 냉각할 때, 냉각에 소요되는 시간을 10~20분으로 하는 것을 특징으로 하는 방향성 전기강판의 제조방법
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR10-2000-0079242A KR100460046B1 (ko) | 2000-12-20 | 2000-12-20 | 방향성 전기강판의 제조방법 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR10-2000-0079242A KR100460046B1 (ko) | 2000-12-20 | 2000-12-20 | 방향성 전기강판의 제조방법 |
Publications (2)
Publication Number | Publication Date |
---|---|
KR20020049917A true KR20020049917A (ko) | 2002-06-26 |
KR100460046B1 KR100460046B1 (ko) | 2004-12-04 |
Family
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR10-2000-0079242A KR100460046B1 (ko) | 2000-12-20 | 2000-12-20 | 방향성 전기강판의 제조방법 |
Country Status (1)
Country | Link |
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KR (1) | KR100460046B1 (ko) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20230094866A (ko) * | 2021-12-21 | 2023-06-28 | 주식회사 포스코 | 이방향성 전기강판 및 그의 제조방법 |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5507883A (en) * | 1992-06-26 | 1996-04-16 | Nippon Steel Corporation | Grain oriented electrical steel sheet having high magnetic flux density and ultra low iron loss and process for production the same |
JP3485475B2 (ja) * | 1998-10-15 | 2004-01-13 | 新日本製鐵株式会社 | 方向性電磁鋼板の製造方法 |
KR100399221B1 (ko) * | 1998-12-26 | 2003-12-24 | 주식회사 포스코 | 고자속밀도일방향성전기강판의제조방법 |
KR100501002B1 (ko) * | 2000-05-24 | 2005-07-18 | 주식회사 포스코 | 방향성 전기강판의 제조방법 |
-
2000
- 2000-12-20 KR KR10-2000-0079242A patent/KR100460046B1/ko not_active IP Right Cessation
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Publication number | Publication date |
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KR100460046B1 (ko) | 2004-12-04 |
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