KR100840833B1 - 고자속밀도 전기강판의 제조방법 - Google Patents
고자속밀도 전기강판의 제조방법 Download PDFInfo
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- KR100840833B1 KR100840833B1 KR1020060132924A KR20060132924A KR100840833B1 KR 100840833 B1 KR100840833 B1 KR 100840833B1 KR 1020060132924 A KR1020060132924 A KR 1020060132924A KR 20060132924 A KR20060132924 A KR 20060132924A KR 100840833 B1 KR100840833 B1 KR 100840833B1
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- steel sheet
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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
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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
- C21D1/26—Methods of annealing
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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
- C21D1/74—Methods of treatment in inert gas, controlled atmosphere, vacuum or pulverulent material
- C21D1/773—Methods of treatment in inert gas, controlled atmosphere, vacuum or pulverulent material under reduced pressure or vacuum
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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
-
- 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
- C21D8/1266—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 between cold rolling steps
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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)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Crystallography & Structural Chemistry (AREA)
- Thermal Sciences (AREA)
- Electromagnetism (AREA)
- Manufacturing & Machinery (AREA)
- Soft Magnetic Materials (AREA)
- Manufacturing Of Steel Electrode Plates (AREA)
Abstract
Description
구 분 | 냉간 압연 횟수 | 냉간 압연율 (%) | 최종 두께 (mm) | 열처리 분위기 | 분위기 변경온도 (oC) | 수소유속 (liter/min) | {110} 입자개수 | 자속밀도 (B10,테슬러) |
실시예1 | 3 | 77-50-58 | 0.1 | 고진공-수소 | 700 | 3 | 39 | 1.88 |
3 | 77-50-58 | 0.1 | 고진공-수소 | 900 | 3 | 38 | 1.88 | |
3 | 77-50-58 | 0.1 | 고진공-수소 | 1100 | 3 | 23 | 1.89 | |
3 | 77-50-58 | 0.1 | 고진공-수소 | 1150 | 3 | 17 | 1.96 | |
실시예2 | 3 | 77-50-58 | 0.1 | 고진공-수소 | 700 | 10 | 45 | 1.84 |
3 | 77-50-58 | 0.1 | 고진공-수소 | 900 | 10 | 43 | 1.83 | |
3 | 77-50-58 | 0.1 | 고진공-수소 | 1100 | 10 | 34 | 1.87 | |
3 | 77-50-58 | 0.1 | 고진공-수소 | 1150 | 10 | 20 | 1.97 |
구 분 | 냉간 압연 횟수 | 냉간 압연율 (%) | 황 함량 (ppm) | 열처리 분위기 | 분위기 변경온도 (oC) | 수소유속 (liter/min) | (110) 입자개수 | 자속밀도 (B10,테슬러) |
실시예3 | 2 | 89-63 | 18 | 고진공-수소 | 700 | 10 | 10 | 2.02 |
실시예4 | 2 | 88-62 | 72 | 고진공-수소 | 700 | 3 | 37 | 1.91 |
실시예5 | 2 | 89-61 | 150 | 고진공-수소 | 700 | 10 | 0 | 1.45 |
구 분 | 냉간 압연 횟수 | 냉간 압연율 (%) | 황 함량 (ppm) | 열처리 분위기 | 분위기 변경온도 (oC) | 수소유속 (liter/min) | (110) 입자개수 | 자속밀도 (B10,테슬러) |
실시예6 | 2 | 86-62 | 7 | 수소-고진공 | 800 | 15 | 40 | 1.95 |
실시예7 | 2 | 86-75 | 7 | 수소-고진공 | 800 | 15 | 80 | 1.93 |
Claims (4)
- 규소 강판을 용해 및 열간 압연에 의하여 제조하고, 이를 최종 냉간 압연율이 30% 이상 90% 미만이 되도록 2회 이상의 냉간 압연과 각 냉간 압연 사이의 중간 소둔을 통하여 두께 0.35 mm 이하의 냉간 압연 규소 강판을 제조한 후,상기 강판을 850 내지 1350oC의 최종 열처리 온도까지 상승하는 과정에서 산화성 분위기와 환원성 분위기를 600 내지 1350oC 범위에서 변경하여 적용하되,진공도가 10-3 토르(torr) 이하인 산화성 분위기와 수소에 대한 수증기의 분압(PH2O/PH2)이 10-3 미만인 환원성 분위기를 온도별로 분리하여 변경함으로써 최종 재결정 소둔하는 공정을 실시하는 것을 특징으로 하는 고자속밀도 전기강판의 제조방법.
- 삭제
- 삭제
- 제 1 항에 있어서,상기 규소 강판은 Si ≤6.6중량%, C ≤0.01중량%, N ≤0.01중량%, S ≤0.015중량%, sol.Al ≤0.01중량%, 잔량의 Fe와 기타 불가피한 불순물로 조성된 것을 특징으로 하는 고자속밀도 전기강판의 제조방법.
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KR1020060132924A KR100840833B1 (ko) | 2006-12-22 | 2006-12-22 | 고자속밀도 전기강판의 제조방법 |
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KR1020060132924A KR100840833B1 (ko) | 2006-12-22 | 2006-12-22 | 고자속밀도 전기강판의 제조방법 |
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Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH05186831A (ja) * | 1991-07-29 | 1993-07-27 | Kenichi Arai | Goss方位に集積した結晶方位を有する方向性珪素鋼板の製造方法 |
JPH11256242A (ja) | 1998-03-09 | 1999-09-21 | Nippon Steel Corp | グラス皮膜と磁気特性に極めて優れた方向性電磁鋼板の製造方法 |
KR20040066205A (ko) * | 2002-01-08 | 2004-07-23 | 신닛뽄세이테쯔 카부시키카이샤 | 경면 방향성 규소 강판의 제조 방법 |
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Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH05186831A (ja) * | 1991-07-29 | 1993-07-27 | Kenichi Arai | Goss方位に集積した結晶方位を有する方向性珪素鋼板の製造方法 |
JPH11256242A (ja) | 1998-03-09 | 1999-09-21 | Nippon Steel Corp | グラス皮膜と磁気特性に極めて優れた方向性電磁鋼板の製造方法 |
KR20040066205A (ko) * | 2002-01-08 | 2004-07-23 | 신닛뽄세이테쯔 카부시키카이샤 | 경면 방향성 규소 강판의 제조 방법 |
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