KR100544723B1 - 저철손 및 고자속밀도를 갖는 방향성 전기강판의 제조방법 - Google Patents
저철손 및 고자속밀도를 갖는 방향성 전기강판의 제조방법 Download PDFInfo
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- KR100544723B1 KR100544723B1 KR1020010084569A KR20010084569A KR100544723B1 KR 100544723 B1 KR100544723 B1 KR 100544723B1 KR 1020010084569 A KR1020010084569 A KR 1020010084569A KR 20010084569 A KR20010084569 A KR 20010084569A KR 100544723 B1 KR100544723 B1 KR 100544723B1
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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
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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
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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
-
- 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
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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
-
- 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
- C22C38/004—Very low carbon steels, i.e. having a carbon content of less than 0,01%
-
- 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)
- Mechanical Engineering (AREA)
- Materials 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
제조공정별 잔류탄소함량(wt%)의 변화 | 자속밀도 (Tesla) | 철 손 (W17/50) | |||
소강탄소량 | 열연판 | 열연판소둔 | 최종소둔판 | ||
0.0050 | 0.0030 | 0.0020 | 0.0010 | 1.915 | 0.913 |
0.0090 | 0.0055 | 0.0033 | 0.0014 | 1.928 | 0.932 |
0.0150 | 0.0084 | 0.0051 | 0.0022 | 1.917 | 0.891 |
0.0190 | 0.0125 | 0.0087 | 0.0036 | 1.911 | 1.083 |
스라브 재가열 | 열연판 연신립율 | B10(Tesla) | 철손(W17/50) | |
1050℃ | 10% | 1.877 | 1.252 | 비교재1 |
1100℃ | 15% | 1.912 | 0.955 | 발명재1 |
1200℃ | 20% | 1.932 | 0.983 | 발명재2 |
1250℃ | 40% | 1.925 | 0.975 | 발명재3 |
1300℃ | 80% | 1.830 | 1.563 | 비교재2 |
냉간압연율 | 제품두께 (mm) | 질소이온 첨가량(ppm) | 자속밀도 (Tesla) | 철손 (W17/50) | |
85% | 0.35 | 150 | 1.851 | 1.362 | 비교재3 |
87% | 0.30 | 100 | 1.895 | 1.205 | 비교재4 |
90% | 0.30 | 80 | 1.905 | 1.107 | 비교재5 |
91% | 0.27 | 200 | 1.922 | 0.976 | 발명재4 |
91% | 0.23 | 150 | 1.941 | 0.944 | 발명재5 |
91% | 0.20 | 5 | 1.885 | 1.224 | 비교재6 |
92% | 0.20 | 130 | 1.938 | 0.939 | 발명재6 |
93% | 0.18 | 250 | 1.946 | 0.921 | 발명재7 |
93% | 0.18 | 380 | 1.782 | 1.506 | 비교재7 |
Claims (1)
- 중량%로 Si:2.0~4.0wt%, 산가용성Al:0.006~0.040wt%, N:0.006~0.012wt%, S: 0.007wt%이하, Cu: 0.5wt%이하, Mn : 0.08~1.0wt%, C: 0.015wt%이하, 잔부 Fe 및 기타 불가피한 불순물로 이루어진 강 스라브를 1100~1250℃로 재가열한 후 열간압연을 행하고 이어서 900~1200℃의 온도에서 단시간 열연판 소둔을 실시한 다음, 냉간압연율 90%이상의 1회 강냉간압연법으로 최종제품의 두께를 0.27mm 이하로 냉간압연한 후, 탈탄공정은 생략하고 750~950℃의 온도에서 질소이온을 함유하는 개스분위기를 사용하여 0.0010~0.0300 wt%의 질소이온이 강판에 도입되는 질화처리소둔을 실시하고, MgO를 주성분으로 하는 융착방지제를 도포하여 권취한 다음, 5~90%질소를 함유하는 수소개스분위기에서 1150∼1250℃의 온도구간까지 승온하고 100%의 수소개스분위기에서 총 10시간 이상균열하고 냉각시키는 고온소둔을 행하는 것을 특징으로 하는 저철손 및 고자속밀도를 갖는 방향성 전기강판의 제조방법
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KR1020010084569A KR100544723B1 (ko) | 2001-12-24 | 2001-12-24 | 저철손 및 고자속밀도를 갖는 방향성 전기강판의 제조방법 |
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KR1020010084569A KR100544723B1 (ko) | 2001-12-24 | 2001-12-24 | 저철손 및 고자속밀도를 갖는 방향성 전기강판의 제조방법 |
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KR20030054427A KR20030054427A (ko) | 2003-07-02 |
KR100544723B1 true KR100544723B1 (ko) | 2006-01-24 |
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Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
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JP5790276B2 (ja) * | 2011-08-08 | 2015-10-07 | 東芝三菱電機産業システム株式会社 | 方向性電磁鋼板の製造ライン及び誘導加熱装置 |
JP2014198874A (ja) | 2013-03-29 | 2014-10-23 | 株式会社神戸製鋼所 | 耐食性と磁気特性に優れた鋼材およびその製造方法 |
KR102323332B1 (ko) * | 2019-12-20 | 2021-11-05 | 주식회사 포스코 | 이방향성 전기강판 및 그의 제조방법 |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH06346147A (ja) * | 1993-06-03 | 1994-12-20 | Nippon Steel Corp | 方向性珪素鋼板の製造方法 |
KR19980044925A (ko) * | 1996-12-09 | 1998-09-15 | 김종진 | 저온 스라브 가열 방식의 고자속밀도 방향성 전기강판 제조방법 |
KR20010064798A (ko) * | 1999-12-18 | 2001-07-11 | 이구택 | 고자속 밀도 일방향성 전기강판의 제조 방법 |
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Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH06346147A (ja) * | 1993-06-03 | 1994-12-20 | Nippon Steel Corp | 方向性珪素鋼板の製造方法 |
KR19980044925A (ko) * | 1996-12-09 | 1998-09-15 | 김종진 | 저온 스라브 가열 방식의 고자속밀도 방향성 전기강판 제조방법 |
KR20010064798A (ko) * | 1999-12-18 | 2001-07-11 | 이구택 | 고자속 밀도 일방향성 전기강판의 제조 방법 |
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