KR100501004B1 - 고자속밀도 방향성 전기강판의 제조방법 - Google Patents
고자속밀도 방향성 전기강판의 제조방법 Download PDFInfo
- Publication number
- KR100501004B1 KR100501004B1 KR10-2000-0072745A KR20000072745A KR100501004B1 KR 100501004 B1 KR100501004 B1 KR 100501004B1 KR 20000072745 A KR20000072745 A KR 20000072745A KR 100501004 B1 KR100501004 B1 KR 100501004B1
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- KR
- South Korea
- Prior art keywords
- annealing
- steel sheet
- electrical steel
- flux density
- oriented electrical
- Prior art date
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Classifications
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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
- C21D8/1261—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
- 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
- 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
- C22C38/02—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
강종 | C | Si | Mn | S | N | B | S.Al |
가 | 0.048 | 3.12 | 0.10 | 0.006 | 0.0042 | 0.0039 | 0.037 |
나 | 0.043 | 3.11 | 0.10 | 0.006 | 0.0047 | 0.0042 | 0.028 |
다 | 0.047 | 3.11 | 0.10 | 0.006 | 0.0047 | 0.0044 | 0.019 |
구분 | 소둔온도(℃) | 자기특성 | 사용강종 | |
철손, W17/50 (w/kg) | 자속밀도, B10 (Tesla) | |||
발명재1 | 900 | 1.09 | 1.93 | 가 |
발명재2 | 950 | 0.91 | 1.93 | |
발명재3 | 1000 | 0.98 | 1.93 | |
발명재4 | 1050 | 1.08 | 1.93 | |
비교재1 | 1100 | 1.34 | 1.90 | |
비교재2 | 1150 | 2.14 | 1.69 | |
비교재3 | 900 | 1.22 | 1.89 | 나 |
발명재5 | 950 | 1.20 | 1.91 | |
발명재6 | 1000 | 1.13 | 1.92 | |
발명재7 | 1050 | 0.96 | 1.93 | |
발명재8 | 1100 | 1.00 | 1.93 | |
발명재9 | 1150 | 1.10 | 1.90 | |
비교재4 | 900 | 1.58 | 1.72 | 다 |
비교재5 | 950 | 1.34 | 1.84 | |
비교재6 | 1000 | 1.27 | 1.87 | |
발명재10 | 1050 | 1.19 | 1.91 | |
발명재11 | 1100 | 1.12 | 1.92 | |
발명재12 | 1150 | 1.02 | 1.91 |
Claims (2)
- 중량%로, C:0.02~0.1%, Si:1.0~4.8%, S:0.006% 이하, 산가용성 Al:0.01~0.05%, Mn:0.05~0.2%, N:0.010% 이하, 0.001% ≤B≤0.012%, 잔부 Fe 및 기타 불가피한 불순물로 이루어진 강 슬라브를 1200~1300℃에서 재가열하여 열간압연한 후, 하기 관계식(1)을 만족하는 온도범위에서 열연소둔을 실시하고, 냉간압연한 다음, 탈탄 및 질화소둔을 동시 혹은 잇달아 행하여, 탈탄 및 질화처리를 행하고 AlN을 형성시킨 다음, 상기 AlN을 1차 재결정 억제제로서 이용하는 고온소둔을 실시하여, 자속밀도(B10)가 1.9Tesla 이상이고 철손(W17/50)이 1.3w/kg 이하인 방향성 전기강판을 제조하는 것을 특징으로 하는 고자속밀도 방향성 전기강판의 제조방법[관계식 1]열연판소둔온도(℃) = 1360 - 11,111 x [Sol. Al(wt%)] ± 100℃
- 제 1항에 있어서, 상기 질화처리후 N의 함량은 100~500ppm인 것을 특징으로 하는 고자속밀도 방향성 전기강판의 제조방법
Priority Applications (1)
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KR10-2000-0072745A KR100501004B1 (ko) | 2000-12-02 | 2000-12-02 | 고자속밀도 방향성 전기강판의 제조방법 |
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KR10-2000-0072745A KR100501004B1 (ko) | 2000-12-02 | 2000-12-02 | 고자속밀도 방향성 전기강판의 제조방법 |
Publications (2)
Publication Number | Publication Date |
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KR20020043690A KR20020043690A (ko) | 2002-06-12 |
KR100501004B1 true KR100501004B1 (ko) | 2005-07-18 |
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Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
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KR101657815B1 (ko) | 2014-12-23 | 2016-09-20 | 주식회사 포스코 | 전자기 특성이 우수한 연자성 강재, 연자성 강 부품 및 그들의 제조방법 |
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