KR920010000A - 피막특성과 자기특성이 뛰어난 박형 방향성 규소 강판의 제조방법 - Google Patents

피막특성과 자기특성이 뛰어난 박형 방향성 규소 강판의 제조방법 Download PDF

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KR920010000A
KR920010000A KR1019910021713A KR910021713A KR920010000A KR 920010000 A KR920010000 A KR 920010000A KR 1019910021713 A KR1019910021713 A KR 1019910021713A KR 910021713 A KR910021713 A KR 910021713A KR 920010000 A KR920010000 A KR 920010000A
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South Korea
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steel sheet
manufacturing
primary recrystallization
recrystallization annealing
decarburization
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KR1019910021713A
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KR940009126B1 (ko
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미찌로우 고마쓰바라
야스유끼 하야까와
가쓰오 이와모또
마꼬또 와따나베
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도오사끼 시노부
가와사끼세이데쓰 가부시끼가이샤
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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
    • 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
    • C21D3/00—Diffusion processes for extraction of non-metals; Furnaces therefor
    • C21D3/02—Extraction of non-metals
    • C21D3/04—Decarburising

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Materials Engineering (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Electromagnetism (AREA)
  • Manufacturing & Machinery (AREA)
  • Manufacturing Of Steel Electrode Plates (AREA)
  • Soft Magnetic Materials (AREA)
  • Chemical Treatment Of Metals (AREA)

Abstract

내용 없음

Description

피막특성과 자기특성이 뛰어난 박형 방향성 규소 강판의 제조방법
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
제1도는 표면 산화물 조성 조정 처리후의 산소 중량의 상위에 따른 강판표면의 적외반사 스펙트럼 강도변화를 나타낸 도면.
제2도는 (a)~(c)는 각각 1도 시료의 단면 방향의 산화물의 조성 변화를 나타내는 모식도.

Claims (6)

  1. 규소 함유 강소재를 열간 압연후 1회 또는 중간 소둔을 사이에 두는 2회의 냉간 압연을 실시하여 판두께 : 0.28㎜ 이하의 최종판두께로 한후 탈탄·1차 재결정 소둔을 실시하고, 이어서 소둔분리제를 도포하고 나서 최종 마무리 소둔을 실시하는 일련의 공정에 의해서 방향성 규소 강판을 제조하는 방법에 있어서, 탈판·1차 재결정 소둔 공정에 있어서, 강판 표면에 파이어라이트와 실리카의 조성비가 적외반사의 흡광도비 Af/As로 0.5~5.5이며 또한 산소중량이 0.4~1.6g/㎡인 부스케일을 형성하는 것을 특징으로 하는 피막 특성과 자기 특성이 뛰어난 박형 방향성 규소강판의 제조방법.
  2. 제1항에 있어서, 규소 함유 강소재중에 Sb를 0.005~0.050%함유시킨 제조방법.
  3. 제1항 또는 제2항에 있어서, 탈탄·1차 재결정 소둔의 균열 영역의 후단에, 분위기의 산소 포텐셜 P(H2O)/P(H2)이 0.40~0.50이고 처리시간이 20~30초간인 표면산화물조정역을 설치하여 이루어진 제조방법.
  4. 제3항에 있어서, 탈탄·1차 재결정 소둔의 균열영역의 산소 포텐셜 P(H2O)/P(H2)을 0.15~0.35로 하는 동시에, 이 균열 영역의 후단에 표면산화물 조성 조정역으로 산소 포텐셜 P(H2O)/P(H2)을 0.40~0.50이고 처리시간이 20~30초간인 처리영역을 설치하여 이루어진 제조방법.
  5. 제3항 또는 제4항에 있어서, 승온과정에 있어서의 분위기의 포텐셜 P(H2O)P(H2)을 0.35~0.60으로 하여 이루어진 제조방법.
  6. 제3항 또는 제4항에 있어서, 승온과정에 있어서의 승온속도를 10~25℃/s로 하여 이루어진 제조방법.
    ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
KR1019910021713A 1990-11-30 1991-11-29 피막특성과 자기특성이 뛰어난 박형 방향성 규소 강판의 제조방법 KR940009126B1 (ko)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2336438A JPH0756048B2 (ja) 1990-11-30 1990-11-30 被膜特性と磁気特性に優れた薄型方向性けい素鋼板の製造方法
JP90-336438 1990-11-30

Publications (2)

Publication Number Publication Date
KR920010000A true KR920010000A (ko) 1992-06-26
KR940009126B1 KR940009126B1 (ko) 1994-10-01

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KR1019910021713A KR940009126B1 (ko) 1990-11-30 1991-11-29 피막특성과 자기특성이 뛰어난 박형 방향성 규소 강판의 제조방법

Country Status (5)

Country Link
US (1) US5571342A (ko)
EP (1) EP0488726B1 (ko)
JP (1) JPH0756048B2 (ko)
KR (1) KR940009126B1 (ko)
DE (1) DE69124778T2 (ko)

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US5507883A (en) * 1992-06-26 1996-04-16 Nippon Steel Corporation Grain oriented electrical steel sheet having high magnetic flux density and ultra low iron loss and process for production the same
KR960009170B1 (en) * 1992-07-02 1996-07-16 Nippon Steel Corp Grain oriented electrical steel sheet having high magnetic flux density and ultra iron loss and process for producing the same
US5472520A (en) * 1993-12-24 1995-12-05 Kawasaki Steel Corporation Method of controlling oxygen deposition during decarbutization annealing on steel sheets
US5620533A (en) * 1995-06-28 1997-04-15 Kawasaki Steel Corporation Method for making grain-oriented silicon steel sheet having excellent magnetic properties
DE69513811T3 (de) † 1995-07-14 2005-09-22 Nippon Steel Corp. Verfahren zum herstellen eines kornorientierten elektrostahlblechs mit einer spiegeloberflache und mit geringem kernverlust
JP3220362B2 (ja) * 1995-09-07 2001-10-22 川崎製鉄株式会社 方向性けい素鋼板の製造方法
JP3470475B2 (ja) * 1995-11-27 2003-11-25 Ｊｆｅスチール株式会社 極めて鉄損の低い方向性電磁鋼板とその製造方法
EP0926250B1 (en) * 1997-04-16 2009-04-15 Nippon Steel Corporation Grain-oriented electromagnetic steel sheet having excellent film characteristics and magnetic characteristics, its production method and decarburization annealing setup therefor
JP3552501B2 (ja) * 1997-10-28 2004-08-11 Ｊｆｅスチール株式会社 鉄損が極めて低い方向性電磁鋼板およびその製造方法
JP4531227B2 (ja) * 2000-01-20 2010-08-25 Ｊｆｅスチール株式会社 鋼帯に形成される内部酸化層の酸素目付量の測定方法及びその測定装置
US6676771B2 (en) * 2001-08-02 2004-01-13 Jfe Steel Corporation Method of manufacturing grain-oriented electrical steel sheet
KR101211307B1 (ko) 2008-10-20 2012-12-11 바스프 에스이 금속 스트립의 표면을 처리하는 연속 방법
RU2480535C2 (ru) * 2008-12-16 2013-04-27 Ниппон Стил Корпорейшн Лист электротехнической стали с ориентированной зеренной структурой и способ его изготовления
JP5854233B2 (ja) * 2013-02-14 2016-02-09 Ｊｆｅスチール株式会社 方向性電磁鋼板の製造方法
EP3205738B1 (en) * 2014-10-06 2019-02-27 JFE Steel Corporation Low-core-loss grain-oriented electromagnetic steel sheet and method for manufacturing same
JP6911597B2 (ja) * 2017-07-13 2021-07-28 日本製鉄株式会社 皮膜密着性に優れる一方向性珪素鋼板及びその製造方法

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JPH028330A (ja) * 1988-06-28 1990-01-11 Kawasaki Steel Corp 方向性珪素鋼板の絶縁被膜の形成方法

Also Published As

Publication number Publication date
EP0488726B1 (en) 1997-02-26
KR940009126B1 (ko) 1994-10-01
EP0488726A2 (en) 1992-06-03
DE69124778T2 (de) 1997-09-11
JPH04202713A (ja) 1992-07-23
EP0488726A3 (ko) 1994-02-23
DE69124778D1 (de) 1997-04-03
JPH0756048B2 (ja) 1995-06-14
US5571342A (en) 1996-11-05

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