KR930004481A - 무방향성 전기강판의 제조방법 - Google Patents

무방향성 전기강판의 제조방법 Download PDF

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Publication number
KR930004481A
KR930004481A KR1019920014546A KR920014546A KR930004481A KR 930004481 A KR930004481 A KR 930004481A KR 1019920014546 A KR1019920014546 A KR 1019920014546A KR 920014546 A KR920014546 A KR 920014546A KR 930004481 A KR930004481 A KR 930004481A
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South Korea
Prior art keywords
oriented electrical
steel sheet
electrical steel
less
cooling
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KR1019920014546A
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English (en)
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KR960011799B1 (ko
Inventor
토모찌 쿠마노
다께시 쿠보다
타데쉬 나까야마
히로야키 마수이
유지 요시무라
Original Assignee
나까가와 하지메
신 닛뽄 세이데스 가부시기가이샤
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Priority claimed from JP3204421A external-priority patent/JP2515449B2/ja
Priority claimed from JP3204420A external-priority patent/JPH0811810B2/ja
Priority claimed from JP3204419A external-priority patent/JPH0811809B2/ja
Application filed by 나까가와 하지메, 신 닛뽄 세이데스 가부시기가이샤 filed Critical 나까가와 하지메
Publication of KR930004481A publication Critical patent/KR930004481A/ko
Application granted granted Critical
Publication of KR960011799B1 publication Critical patent/KR960011799B1/ko

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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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F1/00—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties
    • H01F1/01—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials
    • H01F1/03—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity
    • H01F1/12—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials
    • H01F1/14—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials metals or alloys
    • H01F1/147—Alloys characterised by their composition
    • H01F1/14766—Fe-Si based alloys
    • H01F1/14775—Fe-Si based alloys in the form of sheets
    • 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
    • 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
    • C21D8/1205—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of articles with special electromagnetic properties involving a particular fabrication or treatment of ingot or slab
    • 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
    • C21D8/1266—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 between cold rolling steps

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

Abstract

내용 없음.

Description

무방향성 전기강판의 제조방법
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
제1도는 비교재(평균 냉각속도가 500℃/S)의 최종제품의 결정조직을 나타낸 사진,
제2도는 본 발명재(평균 냉각속도가 0.07℃/S)의 최종제품의 결정조직을 나타낸 사진,
제3도는 본 발명재 (평균 냉각속도가 500℃/S)의 최종 제품이 결정조직을 나타낸 사진.

Claims (4)

  1. 무방향성 전기강판 제조방법에 있어서, 중량%로 Si≤2.5%, Al≤1.0%또한 (Si+2Al)≤2.5%, 잔류물 Fe 및 불가피한 불순물로 이루어진 강철을 주조하고, 최종판두께를 위해 열간 압연하고 냉간 압연하며, 이어서 마무리 어닐링을 실시하는 단계를 포함하고, 상기 강체의 냉각변채(γ→α) 동안의 Ar3와 Ar1사이의평균 냉각속도를 50℃/S 이하로 냉각 제어하는 것을 특징으로 하는 무방향성 전기강판의 제조방법.
  2. 제1항에 있어서, 50℃이하의 평균속도로 Ar3와 Ar1사이에서 냉각하는 단계는 상기 강철의 γ→α 냉각 변태과정동안 냉각용 이동벽 위에서 용강이응고에 의해 형성되는 주조박대에 과하여 실행되는 것을 특징으로 하는 무방향성 전기강판의 제조방법.
  3. 제1항에 있어서, 열간압연 공정에 있어서의 스트립 감기온도를 Ar3점과 동일하거나 그 이상의 온도역으로 하고, 스트립이 감겨진후 Ar3점에서 점까지에서 50℃/S이하의 평균냉각속도가 스트립 코일을 냉각해서 α상으로 변태시키는 것을 특징으로 하는 무방향성 전기강판의 제조방법.
  4. 제1항에 있어서, 최종 냉각압연 이전의 열처리에서, 재료를 γ역까지 가열하여 γ상으로 변태시키고, 그런연후에 Ar3→Ar1간의 평균속도를 50℃/S이하로 하여 재료를 냉각시켜 α상으로 재변태시키는 공정을 포함하는 것윽 특징으로 하는 무방향성 전기강판의 제조방법.
    ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
KR1019920014546A 1991-08-14 1992-08-13 무방향성 전기 강판의 제조 방법 KR960011799B1 (ko)

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
JP3204421A JP2515449B2 (ja) 1991-08-14 1991-08-14 磁気特性が極めて優れた無方向性電磁鋼板の製造方法
JP91-204420 1991-08-14
JP91-204419 1991-08-14
JP91-204421 1991-08-14
JP3204420A JPH0811810B2 (ja) 1991-08-14 1991-08-14 磁気特性が極めて優れた無方向性電磁鋼板の製造方法
JP3204419A JPH0811809B2 (ja) 1991-08-14 1991-08-14 磁気特性が極めて優れた無方向性電磁鋼板の製造方法

Publications (2)

Publication Number Publication Date
KR930004481A true KR930004481A (ko) 1993-03-22
KR960011799B1 KR960011799B1 (ko) 1996-08-30

Family

ID=27328356

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019920014546A KR960011799B1 (ko) 1991-08-14 1992-08-13 무방향성 전기 강판의 제조 방법

Country Status (5)

Country Link
US (1) US5421912A (ko)
EP (1) EP0527495B1 (ko)
KR (1) KR960011799B1 (ko)
AT (1) ATE186333T1 (ko)
DE (1) DE69230239T2 (ko)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE69518529T2 (de) * 1994-06-24 2001-04-19 Nippon Steel Corp., Tokio/Tokyo Verfahren zur herstellung von elektrischen nicht orientierten stahlplatten mit hoher magnetischer flussdichte und geringem eisenverlust
US6436199B1 (en) 1999-09-03 2002-08-20 Kawasaki Steel Corporation Non-oriented magnetic steel sheet having low iron loss and high magnetic flux density and manufacturing method therefor
RU2318883C2 (ru) * 2002-05-08 2008-03-10 Эй-Кей СТИЛ ПРОПЕРТИЗ ИНК Способ непрерывного литья полосы неориентированной электротехнической стали
US20050000596A1 (en) * 2003-05-14 2005-01-06 Ak Properties Inc. Method for production of non-oriented electrical steel strip
KR100797895B1 (ko) * 2006-12-22 2008-01-24 성진경 표면 (100) 면 형성 방법, 이를 이용한 무방향성 전기강판의 제조 방법 및 이를 이용하여 제조된 무방향성 전기강판
US9728312B2 (en) 2011-11-11 2017-08-08 Nippon Steel & Sumitomo Metal Corporation Non-oriented electrical steel sheet and manufacturing method thereof
WO2016136095A1 (ja) * 2015-02-24 2016-09-01 Ｊｆｅスチール株式会社 無方向性電磁鋼板の製造方法
CN106011423B (zh) * 2016-06-15 2018-08-31 南阳师范学院 一种冷轧无取向电工钢的带温轧制工艺

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5476422A (en) * 1977-11-30 1979-06-19 Nippon Steel Corp Manufacture of non-oriented electrical sheet with superior magnetism by self annealing of hot rolled sheet
JPS5948934B2 (ja) * 1981-05-30 1984-11-29 新日本製鐵株式会社 高磁束密度一方向性電磁鋼板の製造方法
JPH01225724A (ja) * 1988-03-04 1989-09-08 Nkk Corp 低磁場磁気特性の優れた無方向性電磁鋼板の製造方法
JPH0696745B2 (ja) * 1988-06-30 1994-11-30 日本鋼管株式会社 軟質磁性材料の製造方法
JP2716987B2 (ja) * 1989-01-10 1998-02-18 川崎製鉄株式会社 磁気特性の優れた無方向性電磁鋼板の製造方法

Also Published As

Publication number Publication date
EP0527495B1 (en) 1999-11-03
EP0527495A1 (en) 1993-02-17
DE69230239D1 (de) 1999-12-09
KR960011799B1 (ko) 1996-08-30
ATE186333T1 (de) 1999-11-15
DE69230239T2 (de) 2000-04-13
US5421912A (en) 1995-06-06

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