KR100406420B1 - 고자속밀도 방향성 전기강판의 제조방법 - Google Patents
고자속밀도 방향성 전기강판의 제조방법 Download PDFInfo
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- KR100406420B1 KR100406420B1 KR10-1999-0063059A KR19990063059A KR100406420B1 KR 100406420 B1 KR100406420 B1 KR 100406420B1 KR 19990063059 A KR19990063059 A KR 19990063059A KR 100406420 B1 KR100406420 B1 KR 100406420B1
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- Prior art keywords
- hot
- temperature
- electrical steel
- steel sheet
- magnetic flux
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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
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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
- C21D8/1216—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
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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
- C21D8/1216—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
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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
- 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
- C21D8/1277—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of articles with special electromagnetic properties involving a particular surface treatment
- C21D8/1283—Application of a separating or insulating coating
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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)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Electromagnetism (AREA)
- Manufacturing & Machinery (AREA)
- Manufacturing Of Steel Electrode Plates (AREA)
Abstract
Description
구분 | 슬라브 가열온도(℃) | 열연종료후 균열온도(℃) | 자속밀도(Tesla) | |
비교재1 | 강1 | 1100 | 750 | 1.81 |
발명재1 | 800 | 1.90 | ||
발명재2 | 850 | 1.92 | ||
발명재3 | 900 | 1.93 | ||
발명재4 | 950 | 1.92 | ||
비교재2 | 1000 | 1.75 | ||
비교재3 | 1280 | 850 | 1.84 | |
발명재5 | 950 | 1.91 | ||
발명재6 | 1050 | 1.94 | ||
발명재7 | 1150 | 1.94 | ||
비교재4 | 1250 | 1.72 | ||
발명재8 | 강2 | 1100 | 750 | 1.90 |
발명재9 | 800 | 1.92 | ||
발명재10 | 850 | 1.91 | ||
발명재11 | 900 | 1.92 | ||
발명재12 | 950 | 1.90 | ||
비교재5 | 1000 | 1.85 | ||
비교재6 | 1280 | 850 | 1.88 | |
발명재13 | 950 | 1.92 | ||
발명재14 | 1050 | 1.92 | ||
발명재15 | 1150 | 1.90 | ||
비교재7 | 1250 | 1.70 |
Claims (1)
- 고자속밀도 방향성 전기강판의 제조방법에 있어서,중량%로 Si: 2.0∼4.0%, sol.Al: 0.010∼0.040%, N: 0.003∼0.010%, C: 0.060%이하, Cu: 0.3∼1.0%, Mn:0.32%이하, Ni:0.02∼0.1%, Cr:0.02∼0.1%, S:0.006%이하, 잔부 Fe 및 기타 불가피한 불순물로 조성된 강 슬라브를 1100∼1320℃로 재가열하여 3.0∼1.5mm로 열간압연하고, 열간압연종료와 동시에 하기 관계식 1을 만족하는 온도범위에서 100초 이내로 균열처리한 다음, 590℃이하로 냉각하고 권취하여 열연판을 제조하고 산세한 다음, 1회의 냉간압연으로 0.20∼0.35mm의 두께까지 냉간압연하고, 이슬점이 40∼70℃이고 질소이온을 함유하는 수소와 질소의 혼합개스분위기하의 800∼950℃온도에서 동시 탈탄질화처리한 후, 소둔분리제를 도포하고 최종마무리고온소둔하는 것을 특징으로 하는 고자속밀도 방향성 전기강판의 제조방법[관계식 1]ST+{39.42*ln([Sol.Al][N])} ≤ T ≤ ST+{12.97*ln([Sol.Al][N])}(ST:슬라브 가열온도, [Sol.Al]: 산가용성 Al의 중량%, [N]: N의 중량%,750℃≤T≤1200℃)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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KR10-1999-0063059A KR100406420B1 (ko) | 1999-12-27 | 1999-12-27 | 고자속밀도 방향성 전기강판의 제조방법 |
Applications Claiming Priority (1)
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KR10-1999-0063059A KR100406420B1 (ko) | 1999-12-27 | 1999-12-27 | 고자속밀도 방향성 전기강판의 제조방법 |
Publications (2)
Publication Number | Publication Date |
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KR20010060653A KR20010060653A (ko) | 2001-07-07 |
KR100406420B1 true KR100406420B1 (ko) | 2003-11-20 |
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KR10-1999-0063059A KR100406420B1 (ko) | 1999-12-27 | 1999-12-27 | 고자속밀도 방향성 전기강판의 제조방법 |
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Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100878616B1 (ko) * | 2001-11-30 | 2009-01-15 | 주식회사 포스코 | 표면품질이 우수한 아연도금용 중탄소 열연강판 제조방법 |
KR100940718B1 (ko) * | 2002-12-26 | 2010-02-08 | 주식회사 포스코 | 열연판 소둔 생략에 의한 방향성 전기강판의 제조방법 |
KR101110246B1 (ko) * | 2003-12-26 | 2012-02-15 | 주식회사 포스코 | 적정 이슬점 제어에 의한 글래스리스 전기강판의 제조방법 |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR960007799A (ko) * | 1994-08-29 | 1996-03-22 | 김만제 | 방향성 전기강판의 제조방법 |
JPH0949022A (ja) * | 1995-08-07 | 1997-02-18 | Nippon Steel Corp | 低鉄損高磁束密度一方向性電磁鋼板の製造方法 |
JP2000282142A (ja) * | 1999-03-29 | 2000-10-10 | Nippon Steel Corp | 一方向性電磁鋼板の製造方法 |
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- 1999-12-27 KR KR10-1999-0063059A patent/KR100406420B1/ko not_active IP Right Cessation
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR960007799A (ko) * | 1994-08-29 | 1996-03-22 | 김만제 | 방향성 전기강판의 제조방법 |
JPH0949022A (ja) * | 1995-08-07 | 1997-02-18 | Nippon Steel Corp | 低鉄損高磁束密度一方向性電磁鋼板の製造方法 |
JP2000282142A (ja) * | 1999-03-29 | 2000-10-10 | Nippon Steel Corp | 一方向性電磁鋼板の製造方法 |
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