KR101059216B1 - 그라스피막특성이 우수한 방향성 전기강판 제조방법 - Google Patents
그라스피막특성이 우수한 방향성 전기강판 제조방법 Download PDFInfo
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- KR101059216B1 KR101059216B1 KR1020030097498A KR20030097498A KR101059216B1 KR 101059216 B1 KR101059216 B1 KR 101059216B1 KR 1020030097498 A KR1020030097498 A KR 1020030097498A KR 20030097498 A KR20030097498 A KR 20030097498A KR 101059216 B1 KR101059216 B1 KR 101059216B1
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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
- 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
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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
- C21D8/1222—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
- C21D8/1261—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
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/001—Ferrous alloys, e.g. steel alloys containing N
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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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- 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
- C22C38/04—Ferrous alloys, e.g. steel alloys containing manganese
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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
- C22C38/06—Ferrous alloys, e.g. steel alloys containing aluminium
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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
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/34—Ferrous alloys, e.g. steel alloys containing chromium with more than 1.5% by weight of silicon
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Electromagnetism (AREA)
- Manufacturing & Machinery (AREA)
- Manufacturing Of Steel Electrode Plates (AREA)
Abstract
Description
구분 | SiO2상태의 [O]량 (ppm) | 소둔분리제의 수화수분 (%) | 도포량 (g/m2) | 그라스피막형성량 (g/m2) | 장력부여능 (kg/mm2) | 외관특성 |
비교재1 | 350 | 4.5 | 12.2 | 3.56 | 0.31 | 산화변색 |
비교재2 | 395 | 3.3 | 13.5 | 3.48 | 0.35 | 소둔산화 |
비교재3 | " | 2.8 | 10.5 | 3.06 | 0.37 | 양호 |
발명재1 | " | 3.8 | 11.2 | 3.23 | 0.41 | 양호 |
비교재4 | 450 | 3.8 | 10.1 | 3.46 | 0.36 | 방출구 |
발명재2 | " | 2.2 | 14.8 | 3.18 | 0.39 | 양호 |
발명재3 | " | 2.8 | 11.8 | 3.21 | 0.40 | 양호 |
비교재5 | " | 3.2 | 9.5 | 2.98 | 0.34 | 얇음 |
비교재6 | 510 | 3.3 | 10.5 | 3.53 | 0.33 | 산화변색 |
발명재4 | " | 2.1 | 10.5 | 3.20 | 0.41 | 양호 |
비교재7 | " | 1.8 | 11.1 | 3.05 | 0.34 | 방출구 |
비교재8 | 610 | 2.5 | 11.5 | 3.33 | 0.31 | 소둔산화 |
Claims (1)
- 중량비로 Si : 2.9∼3.3%, C : 0.040∼0.059%, 용존 Al : 0.021∼0.030%, N : 0.006∼0.010%, Mn : 0.08∼0.12%, Cr : 0.04~0.12%를 기본으로 하여 기타 불가피하게 혼입되는 성분을 포함한 나머지를 Fe로 구성된 조성의 슬라브를 1250℃이하에서 재가열후 열간압연하여 2.0~2.3mm의 열간압연판을 만든 후, 이어서 1100℃이하의 온도에서 열연판소둔을 하고, 산세 및 냉간압연으로 최종 두께인 0.27~0.30mm두께로 조정하고, 이후 수소를 포함하는 습윤분위기하의 840∼890℃온도에서 탈탄처리하여 탈탄판의 산화물중의 SiO2상태의 [O]량을 380~540ppm으로 관리하고, 이어서 MgO를 포함하는 소둔분리제를 슬러리상태로 도포하여 건조한 다음 권취하여 대형코일로 만들되 상기 소둔분리제의 도포량 Z(g/m2)은 상기 탈탄판의 산화물중의 SiO2상태의 [O]량 분석치 X(ppm)와, 소둔분리제의 수화수분(LOI)량 Y(%)에 따라 하기 식 1에 의하여 제어관리하고,Z = (634 - X) / 5.6 Y ± 0.2 ------(식 1)이어서, 700∼1200℃구간의 승온속도를 15℃/hr이상으로 유지하면서 승온하여 최고온도 1200℃에서 20시간 이상 균열한 후 냉각하는 열사이클을 거치는 마무리 고온소둔을 행하는 것을 특징으로 하는 그라스피막특성이 우수한 방향성 전기강판 제조방법.
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KR1020030097498A KR101059216B1 (ko) | 2003-12-26 | 2003-12-26 | 그라스피막특성이 우수한 방향성 전기강판 제조방법 |
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KR1020030097498A KR101059216B1 (ko) | 2003-12-26 | 2003-12-26 | 그라스피막특성이 우수한 방향성 전기강판 제조방법 |
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KR20050066237A KR20050066237A (ko) | 2005-06-30 |
KR101059216B1 true KR101059216B1 (ko) | 2011-08-24 |
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CN111020140A (zh) * | 2019-12-17 | 2020-04-17 | 无锡晶龙华特电工有限公司 | 一种磁性优良取向硅钢氧化镁退火隔离剂及其涂覆工艺 |
WO2024111567A1 (ja) * | 2022-11-22 | 2024-05-30 | Jfeスチール株式会社 | 脱炭焼鈍後の酸素目付量予測モデルとその作成方法ならびに方向性電磁鋼板の製造方法 |
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