KR100345720B1 - 자기적 특성이 우수한 방향성 규소강판의 제조방법 - Google Patents
자기적 특성이 우수한 방향성 규소강판의 제조방법 Download PDFInfo
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- KR100345720B1 KR100345720B1 KR1019990056177A KR19990056177A KR100345720B1 KR 100345720 B1 KR100345720 B1 KR 100345720B1 KR 1019990056177 A KR1019990056177 A KR 1019990056177A KR 19990056177 A KR19990056177 A KR 19990056177A KR 100345720 B1 KR100345720 B1 KR 100345720B1
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- Prior art keywords
- steel sheet
- grain
- nitrogen
- silicon steel
- oriented silicon
- 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
- C21D8/1255—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
- 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
-
- 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
- C21D8/1266—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
-
- 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
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/002—Ferrous alloys, e.g. steel alloys containing In, Mg, or other elements not provided for in one single group C22C38/001 - C22C38/60
-
- 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
- C22C38/008—Ferrous alloys, e.g. steel alloys containing tin
-
- 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)
- Manufacturing Of Steel Electrode Plates (AREA)
- Soft Magnetic Materials (AREA)
Abstract
Description
구분 | 입계편석 원소의 함량(wt%) | 2차 재결정률(면적비율%) | 자속밀도(B10)Tesla | |||
인(P) | 주석(Sn) | 보론(B) | ||||
발명재 | 1 | 0.035 | 0.11 | 0.0008 | 100 | 1.90 |
2 | 0.058 | 0.12 | 0.0010 | 100 | 1.91 | |
3 | 0.042 | 0.085 | 0.0025 | 100 | 1.91 | |
4 | 0.037 | 0.066 | 0.0008 | 100 | 1.89 | |
5 | 0.055 | 0.072 | 0.0012 | 100 | 1.90 | |
비교재 | 1 | 0.015 | 0.080 | 0.0015 | 40 | 1.72 |
2 | 0.042 | 0.050 | 0.0013 | 30 | 1.68 | |
3 | 0.050 | 0.070 | 0.0070 | 35 | 1.66 |
구분 | 입계편석 원소의 함량(wt%) | 2차 재결정률(면적비율%) | 자속밀도(B10)Tesla | |||
인(P) | 주석(Sn) | 보론(B) | ||||
발명재 | 6 | 0.048 | 0.098 | 0.0005 | 100 | 1.90 |
7 | 0.042 | 0.11 | 0.0011 | 100 | 1.92 | |
8 | 0.045 | 0.096 | 0.0016 | 100 | 1.89 | |
9 | 0.057 | 0.069 | 0.0021 | 100 | 1.90 | |
10 | 0.055 | 0.072 | 0.0028 | 100 | 1.91 | |
비교재 | 4 | 0.050 | 0.032 | 0.0041 | 45 | 1.71 |
5 | 0.015 | 0.083 | 0.0055 | 20 | 1.62 | |
6 | 0.050 | 0.070 | 0.0036 | 55 | 1.68 |
구분 | 질소부호후 총질소량(ppm) | 2차 재결정 발생률 (%) | 자속밀도 B10Tesla | 시료구분 |
발명재3 | 120 | 65 | 1.78 | 비교재 |
164 | 100 | 1.91 | 발명재 | |
180 | 100 | 1.90 | 발명재 | |
250 | 100 | 1.89 | 발명재 | |
275 | 83 | 1.81 | 비교재 | |
430 | 50 | 1.75 | 비교재 | |
발명재10 | 83 | 40 | 1.64 | 비교재 |
162 | 100 | 1.89 | 발명재 | |
190 | 100 | 1.92 | 발명재 | |
270 | 100 | 1.91 | 발명재 | |
318 | 75 | 1.79 | 비교재 | |
425 | 65 | 1.66 | 비교재 |
Claims (1)
- 중량%로 Si: 2.0 ~4.0 %, C: 0.07%이하, Mn: 0.01%이상, P:0.03~0.06%, Sn: 0.06~0.12%, B:0.0005~0.0030%, S :0.007%이하, Al: 0.01%이하, 나머지 Fe 및 기타 불가피한 불순물로 이루어진 강 슬라브를 재가열한 후 열간압연 및 산세하고, 1회 냉간압연 혹은 중간열처리를 포함한 2회 냉간압연하여 냉간압연강판으로 제조한 후, 이를 암모니아를 포함한 분위기하에서 탈탄과 동시에 질소부화시키거나 탈탄이후에 질소를 부화시킨 다음, 최종열처리하여 방향성 규소강판을 제조하는 방법에 있어서,상기 질소부화시 강내의 총질소량을 150ppm~250ppm로 조정하는 것을 특징으로 하는 자기적 특성이 우수한 방향성 규소강판의 제조방법.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019990056177A KR100345720B1 (ko) | 1999-12-09 | 1999-12-09 | 자기적 특성이 우수한 방향성 규소강판의 제조방법 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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KR1019990056177A KR100345720B1 (ko) | 1999-12-09 | 1999-12-09 | 자기적 특성이 우수한 방향성 규소강판의 제조방법 |
Publications (2)
Publication Number | Publication Date |
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KR20010055100A KR20010055100A (ko) | 2001-07-02 |
KR100345720B1 true KR100345720B1 (ko) | 2002-07-27 |
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KR1019990056177A KR100345720B1 (ko) | 1999-12-09 | 1999-12-09 | 자기적 특성이 우수한 방향성 규소강판의 제조방법 |
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Families Citing this family (1)
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KR100544418B1 (ko) * | 2000-11-28 | 2006-01-24 | 주식회사 포스코 | 자기적 특성이 우수한 방향성 규소강판의 제조방법 |
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