KR100466176B1 - 응력제거소둔 후 철손이 낮은 무방향성 전기강판의 제조방법 - Google Patents
응력제거소둔 후 철손이 낮은 무방향성 전기강판의 제조방법 Download PDFInfo
- Publication number
- KR100466176B1 KR100466176B1 KR10-2000-0082818A KR20000082818A KR100466176B1 KR 100466176 B1 KR100466176 B1 KR 100466176B1 KR 20000082818 A KR20000082818 A KR 20000082818A KR 100466176 B1 KR100466176 B1 KR 100466176B1
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- South Korea
- Prior art keywords
- annealing
- less
- iron loss
- oriented electrical
- electrical steel
- Prior art date
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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
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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
- C21D1/30—Stress-relieving
-
- 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
- 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
Abstract
Description
응력제거소둔전철손(W15/50)(단위: W/Kg) | 응력제거소둔후철손(W15/50)(단위: W/Kg) | 철손개선율(단위:%) | 결정립도(단위:㎛) | (200)면강도 | |
실시예 1 | 5.14 | 2.75 | 46.5 | - | - |
실시예 2 | 5.72 | 2.92 | 48.9 | - | - |
실시예 3 | 5.75 | 2.87 | 50.4 | - | - |
실시예 4 | - | 2.74 | - | 160 | 0.58 |
실시예 5 | - | 2.95 | - | 150 | 0.56 |
실시예 6 | - | 2.81 | - | 152 | 0.59 |
실시예 7 | - | 2.76 | - | 163 | 0.51 |
실시예 8 | - | 2.70 | - | 148 | 0.62 |
실시예 9 | - | 2.71 | - | 155 | 0.57 |
실시예 10 | - | 2.70 | - | 153 | 0.57 |
비교예 1 | 3.75 | 2.76 | 26.4 | - | - |
비교예 2 | - | 3.32 | - | 156 | 0.38 |
비교예 3 | - | 3.30 | - | 85 | 0.55 |
비교예 4 | - | 3.19 | - | 94 | 0.57 |
비교예 5 | - | 3.23 | - | 88 | 0.56 |
비교예 6 | - | 3.20 | - | 90 | 0.55 |
비교예 7 | - | 3.45 | - | 155 | 0.24 |
비교예 8 | - | 3.18 | - | 97 | 0.55 |
Claims (1)
- 응력제거소둔 후 철손이 낮은 무방향성 전기강판의 제조방법에 있어서,0.005wt% 이하의 C, 1.5wt% 이하의 Mn, 0.15wt% 이하의 P, 0.005wt% 이하의 S, 0.005wt% 이하의 N, 0.1∼3.5wt%의 Ni, 0.0005∼0.0050wt%의 B, 2.5wt%<Si+산가용성 Al≤4.0wt%를 만족하는 Si 및 산가용성 Al, 잔부의 Fe 및 기타 불순물로 조성된 슬라브강을 열간압연한 후 냉간압연한 다음, 600∼800℃온도에서 5℃/sec 이상의 속도로 30∼300초동안 소둔하여 수요가 가공후 700∼850℃온도에서 응력제거소둔하는 것을 특징으로 하는 응력제거소둔 후 철손이 낮은 무방향성 전기강판의 제조방법.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR10-2000-0082818A KR100466176B1 (ko) | 2000-12-27 | 2000-12-27 | 응력제거소둔 후 철손이 낮은 무방향성 전기강판의 제조방법 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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KR10-2000-0082818A KR100466176B1 (ko) | 2000-12-27 | 2000-12-27 | 응력제거소둔 후 철손이 낮은 무방향성 전기강판의 제조방법 |
Publications (2)
Publication Number | Publication Date |
---|---|
KR20020053291A KR20020053291A (ko) | 2002-07-05 |
KR100466176B1 true KR100466176B1 (ko) | 2005-01-13 |
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KR10-2000-0082818A KR100466176B1 (ko) | 2000-12-27 | 2000-12-27 | 응력제거소둔 후 철손이 낮은 무방향성 전기강판의 제조방법 |
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Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100940714B1 (ko) * | 2002-12-23 | 2010-02-08 | 주식회사 포스코 | 응력제거소둔 후 철손특성이 우수한 무방향성 전기강판의제조방법 |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS61136626A (ja) * | 1984-12-06 | 1986-06-24 | Nippon Kokan Kk <Nkk> | 無方向性電磁鋼板の製造方法 |
KR20000001997A (ko) * | 1998-06-16 | 2000-01-15 | 이구택 | 수요가 열처리후 자성이 우수한 무방향성 전기강판의 제조방법 |
KR100268848B1 (ko) * | 1996-10-08 | 2000-10-16 | 이구택 | 응력제거소둔후에 철손이 낮은 무방향성 전기강판 |
JP2002220643A (ja) * | 2001-01-29 | 2002-08-09 | Nippon Steel Corp | 加工性の良好な低鉄損無方向性電磁鋼板及びその製造方法 |
KR100359752B1 (ko) * | 1998-12-29 | 2003-01-08 | 주식회사 포스코 | 철손이 낮은 무방향성 전기강판 및 그 제조방법 |
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- 2000-12-27 KR KR10-2000-0082818A patent/KR100466176B1/ko active IP Right Grant
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS61136626A (ja) * | 1984-12-06 | 1986-06-24 | Nippon Kokan Kk <Nkk> | 無方向性電磁鋼板の製造方法 |
KR100268848B1 (ko) * | 1996-10-08 | 2000-10-16 | 이구택 | 응력제거소둔후에 철손이 낮은 무방향성 전기강판 |
KR20000001997A (ko) * | 1998-06-16 | 2000-01-15 | 이구택 | 수요가 열처리후 자성이 우수한 무방향성 전기강판의 제조방법 |
KR100359752B1 (ko) * | 1998-12-29 | 2003-01-08 | 주식회사 포스코 | 철손이 낮은 무방향성 전기강판 및 그 제조방법 |
JP2002220643A (ja) * | 2001-01-29 | 2002-08-09 | Nippon Steel Corp | 加工性の良好な低鉄損無方向性電磁鋼板及びその製造方法 |
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KR20020053291A (ko) | 2002-07-05 |
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