KR950032673A - 응력제거소둔후의 철손이 낮은 무방향성 전자강판 및 모터 또는 트랜스용 코어 - Google Patents

응력제거소둔후의 철손이 낮은 무방향성 전자강판 및 모터 또는 트랜스용 코어 Download PDF

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KR950032673A
KR950032673A KR1019950009272A KR19950009272A KR950032673A KR 950032673 A KR950032673 A KR 950032673A KR 1019950009272 A KR1019950009272 A KR 1019950009272A KR 19950009272 A KR19950009272 A KR 19950009272A KR 950032673 A KR950032673 A KR 950032673A
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steel sheet
less
iron loss
stress relief
relief annealing
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KR1019950009272A
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KR100373871B1 (ko
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미노루 다카시마
게이지 사토
다카시 오바라
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도사끼 시노부
가와사끼 세이데쓰 가부시끼가이샤
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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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
    • H01F41/02—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets
    • H01F41/0206—Manufacturing of magnetic cores by mechanical means
    • H01F41/0213—Manufacturing of magnetic circuits made from strip(s) or ribbon(s)
    • 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
    • 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
    • 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
    • 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
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K1/00—Details of the magnetic circuit
    • H02K1/02—Details of the magnetic circuit characterised by the magnetic material
    • 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
    • C21D1/26—Methods of annealing
    • C21D1/30—Stress-relieving
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49002—Electrical device making
    • Y10T29/49009—Dynamoelectric machine
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49002—Electrical device making
    • Y10T29/4902—Electromagnet, transformer or inductor
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49002—Electrical device making
    • Y10T29/4902—Electromagnet, transformer or inductor
    • Y10T29/49075—Electromagnet, transformer or inductor including permanent magnet or core
    • Y10T29/49078—Laminated

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

Abstract

1. 청구범위에 기재된 발명이 속한 기술분야
본 발명은 자기특성이 우수한 1.0%이하의 Si을 함유하는 무방향성 전자강판에 관한 것이다.
2. 발명이 해결하려고 하는 기술적 과제
본 발명은 편칭, 척층후의 응력제거소둔을 저온단시간에 행하는 경우에도 철손등의 자기특성을 현저하게 향상할수 있는 무방향성 전자강판을 제공하는데 있다.
3. 발명의 해결방법의 요지
REM을 첨가하고, Zr, Ti을 줄여서 저온, 단시간의 응력제거소둔과정에 있어서의 결정입자성장을 저해하는 극히 미세한 석출물을 거칠고 크게 해서 무해화하고, 저온, 단시간의 응력제거소둔후의 철손이 우수한 무방향성 전자강판을 얻을수 있는 것이다.
4. 발명의 중요한 용도
본 발명은 철손이 낮은 모터 또는 트랜스용 코어로 사용되는 것이다.
*선택도 제3도

Description

응력제거소둔후의 철손이 낮은 무방향성 전자강판 및 모터 또는 트랜스용 코어
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
제1도는 본 발명에 의한 성분에 유사한 강을 사용하여 725℃ ×1시간의 응력제거소둔 후의 철손(W15/50)에 미치는 Zr 및 REM의 영향을 나타내는 그래프, 제2도는 본 발명에 의한 성분에 유사한 강을 사용하여 725℃ ×1시간의 응력제거소둔 후의 철손(W15/50)에 미치는 Ti 및 REM의 영향을 나타내는 그래프, 제3도는 본 발명에 의한 성분에 유사한 강을 사용하여 725℃ ×1시간의 응력제거소둔 후의 철손(W15/50)에 미치는 REM의 영향을 나타내는 그래프.

Claims (9)

  1. C : 0.01wt%이하, Si : 1.0wt%이하, Mn : 0.1wt%이상, 1.5wt%이하, Al : 0.2wt%이상, 1.5wt%이하, REM : 2ppm 이상, 80ppm이하이고, 불순물로서의 Ti, Zr이 Ti : 15ppm 이상, Zr : 80ppm 이하이고, 저온, 단시간 응력제거소둔후의 철손의 우수한 것을 특징으로 하는 무방향성 전자강판.
  2. 제1항에 있어서, 725℃ ×1시간의 응력제거소둔 후의 철손(W15/50)이 4.0W/㎏이하인 것을 특징으로 하는 무방향성 전자강판.
  3. 제1항에 있어서, Ti : 10ppm 이하인 것을 특징으로 하는 무방향성 전자강판.
  4. 제1항에 있어서, Zr : 60ppm 이하인 것을 특징으로 하는 무방향성 전자강판.
  5. 제1항에 있어서, REM : 5ppm 이상 50ppm 이하인 것을 특징으로 하는 무방향성 전자강판.
  6. C : 0.01wt%이하, Si : 1.0wt%이하, Mn : 0.1wt%이상, 1.5wt%이하, Al : 0.2wt%이상, 1.5wt%이하, REM : 5ppm 이상, 50ppm 이하이고, 불순물로서의 Ti, Zr이 Ti : 10ppm 이하, Zr : 60ppm 이하이고, 725℃ ×1시간의 응력제거소둔 후의 철손(W15/50)이 3.5W/㎏이하인 것을 특징으로 하는 무방향성 전자강판.
  7. 제1항에 있어서, 무방향성 전자강판을 펀칭가공하고, 적층하고, 응력제거소둔을 실시해서 얻어지는 것을 특징으로 하는 철손이 낮은 모터 또는 트랜스용 코어.
  8. 제2항에 있어서, 무방향성 전자강판을 펀칭가공하고, 적층하고, 응력제거소둔을 실시해서 얻어지는 것을 특징으로 하는 철손이 낮은 모터 또는 트랜스용 코어.
  9. 제6항에 있어서, 무방향성 전자강판을 펀칭가공하고, 적층하고, 응력제거소둔을 실시해서 얻어지는 것을 특징으로 하는 철손이 낮은 모터 또는 트랜스용 코어.
    ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
KR1019950009272A 1994-04-22 1995-04-20 응력제거소둔후의철손이낮은무방향성전자강판및모터또는트랜스용코어 KR100373871B1 (ko)

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JP8470894 1994-04-22
JP94-084708 1994-04-22
JP94-84708 1994-04-22

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KR100373871B1 KR100373871B1 (ko) 2003-05-09

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US (2) US5730810A (ko)
EP (1) EP0678878B1 (ko)
KR (1) KR100373871B1 (ko)
CN (1) CN1082095C (ko)
CA (1) CA2147559C (ko)
DE (1) DE69515545T2 (ko)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6290783B1 (en) * 1999-02-01 2001-09-18 Kawasaki Steel Corporation Non-oriented electromagnetic steel sheet having excellent magnetic properties after stress relief annealing
CN1102670C (zh) 1999-06-16 2003-03-05 住友金属工业株式会社 无方向性电磁钢片及其制造方法
JP4174320B2 (ja) * 2000-12-19 2008-10-29 ポスコ 優れた電気及び磁気シールド特性を有する高強度の鋼板及びその製造方法
JP2004328986A (ja) * 2003-01-14 2004-11-18 Toyo Tetsushin Kogyo Kk モータ用固定子コアおよびその製造方法
US7662242B2 (en) 2004-11-04 2010-02-16 Nippon Steel Corporation Non-oriented electrical steel superior in core loss
JP4280224B2 (ja) * 2004-11-04 2009-06-17 新日本製鐵株式会社 鉄損に優れた無方向性電磁鋼板
WO2008042361A1 (en) * 2006-10-02 2008-04-10 Analog Devices, Inc. Integrated energy metering system
JP4648910B2 (ja) * 2006-10-23 2011-03-09 新日本製鐵株式会社 磁気特性の優れた無方向性電磁鋼板の製造方法
NL1042618B1 (en) * 2017-11-02 2019-05-13 Bosch Gmbh Robert Multi-layer blanking process for manufacturing metal parts
WO2020085448A1 (ja) * 2018-10-24 2020-04-30 日本製鉄株式会社 無方向性電磁鋼板とそれを用いた積層コアの製造方法

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DE2539002B2 (de) * 1974-09-26 1978-01-26 The Foundation the Research Insti tute of Electric and Magnetic Alloys Sendai (Japan) Verwendung von legierungen zur herstellung von magnetkoepfen
US3960616A (en) * 1975-06-19 1976-06-01 Armco Steel Corporation Rare earth metal treated cold rolled, non-oriented silicon steel and method of making it
JPS5468717A (en) * 1977-11-11 1979-06-02 Kawasaki Steel Co Production of unidirectional silicon steel plate with excellent electromagnetic property
US4338143A (en) * 1981-03-27 1982-07-06 Nippon Steel Corporation Non-oriented silicon steel sheet with stable magnetic properties
JPS58209103A (ja) * 1982-05-31 1983-12-06 Fujitsu Ltd 軟質磁性材料の製造方法
JPH05140649A (ja) * 1991-07-25 1993-06-08 Nippon Steel Corp 磁気特性が優れた無方向性電磁鋼板の製造方法

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Publication number Publication date
CN1082095C (zh) 2002-04-03
EP0678878B1 (en) 2000-03-15
KR100373871B1 (ko) 2003-05-09
CA2147559A1 (en) 1995-10-23
CA2147559C (en) 2000-08-08
US5942051A (en) 1999-08-24
DE69515545D1 (de) 2000-04-20
DE69515545T2 (de) 2000-06-29
EP0678878A1 (en) 1995-10-25
CN1112962A (zh) 1995-12-06
US5730810A (en) 1998-03-24

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