KR970043178A - 절연피막의 밀착성이 우수한 무방향성 전기강판의 제조방법 - Google Patents

절연피막의 밀착성이 우수한 무방향성 전기강판의 제조방법 Download PDF

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KR970043178A
KR970043178A KR1019950051874A KR19950051874A KR970043178A KR 970043178 A KR970043178 A KR 970043178A KR 1019950051874 A KR1019950051874 A KR 1019950051874A KR 19950051874 A KR19950051874 A KR 19950051874A KR 970043178 A KR970043178 A KR 970043178A
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South Korea
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less
annealing
electrical steel
steel sheet
oriented electrical
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KR1019950051874A
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KR100240995B1 (ko
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배병근
이원걸
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김종진
포항종합제철 주식회사
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Priority to KR1019950051874A priority Critical patent/KR100240995B1/ko
Priority to PCT/KR1996/000078 priority patent/WO1997022723A1/ja
Priority to JP52266897A priority patent/JP3176933B2/ja
Priority to RU97115682A priority patent/RU2134727C1/ru
Priority to US08/894,394 priority patent/US5803988A/en
Priority to DE19681215T priority patent/DE19681215C2/de
Priority to CN96191991A priority patent/CN1060815C/zh
Publication of KR970043178A publication Critical patent/KR970043178A/ko
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Publication of KR100240995B1 publication Critical patent/KR100240995B1/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
    • 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
    • C21D8/1288—Application of a tension-inducing coating
    • 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
    • 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
    • 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
    • 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
    • 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
    • H01F1/16—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 in the form of sheets
    • H01F1/18—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 in the form of sheets with insulating coating
    • 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)
  • Electromagnetism (AREA)
  • Mechanical Engineering (AREA)
  • Organic Chemistry (AREA)
  • Metallurgy (AREA)
  • Materials Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Thermal Sciences (AREA)
  • Power Engineering (AREA)
  • Dispersion Chemistry (AREA)
  • Manufacturing Of Steel Electrode Plates (AREA)
  • Soft Magnetic Materials (AREA)

Abstract

본 발명은 모터, 발전기, 소형변압기등과 같은 전기기기의 철심으로 사용되는 무방향성 전기강판의 제조방법에 관한 것으로, 본 발명은 냉연판의 소둔시 소둔조건을 적절히 제어하여 치밀한 표면산화층을 형성함으로써 절연피막의 조성제어의 필요없이 절연피막의 밀착성을 향상시킬 수 있는 무방향성 전기강판의 제조방법을 제공하고자 하는데 그 목적이 있다. 상기한 목적을 달성하기 위한 본 발명은 무방향성 전기강판의 제조방법에 있어서, 중량%로 C:0.01% 이하, Si:3.50% 이하, Mn:1.5% 이하, P:0.15% 이하, S:0.015% 이하, Al:1.0% 이하, N:0.008% 이하, O:0.005% 이하, Sn:0.03-0.30%, Ni:0.03-1.0%, Cu:0.03-0.50%, 잔부 Fe 및 기타 불가피하게 첨가되는 불순물로 조성되는 슬라브를 재가열한 후 열간압연하고 열연판 소둔 또는 열연판 소둔생략 후 바로 산세, 냉간압연한 후, 이슬점이 30-65℃인 습식분위기에서 750-850℃의 온도범위로 30초-5분 저온소둔후, 이슬점 0℃이하의 건조한 분위기에서 900-1070℃의 온도범위로 10초-5분 고온소둔하고, 이어 절연피막을 입히고, 경화열처리를 하는 것을 포함하여 이루어지는 절연피막의 밀착성이 우수한 무방향성 전기강판의 제조방법에 관한 것을 그 요지로 한다.

Description

절연피막의 밀착성이 우수한 무방향성 전기강판의 제조방법
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음

Claims (1)

  1. 무방향성 전기강판의 제조방법에 있어서, 중량%로 C:0.01% 이하, Si:3.50% 이하, Mn:1.5% 이하, P:0.15% 이하, S:0.015% 이하, Al:1.0% 이하, N:0.008% 이하, O:0.005% 이하, Sn:0.03-0.30%, Ni:0.03-1.0%, Cu:0.03-0.50%, 잔부 Fe 및 기타 불가피하게 첨가되는 불순물로 조성되는 슬라브를 재가열한 후 열간압연하고 열연판 소둔 또는 열연판 소둔생략 후 바로 산세, 냉간압연한 후, 이슬점이 30-65℃인 습식분위기에서 750-850℃의 온도범위로 30초-5분 저온소둔후, 이슬점 0℃이하의 건조한 분위기에서 900-1070℃의 온도범위로 10초-5분 고온소둔하고, 이어 절연피막을 입히고, 경화열처리를 하는 것을 포함하여 이루어지는 절연피막의 밀착성이 우수한 무방향성 전기강판의 제조방법.
KR1019950051874A 1995-12-19 1995-12-19 절연피막의 밀착성이 우수한 무방향성 전기강판의 제조방법 KR100240995B1 (ko)

Priority Applications (7)

Application Number Priority Date Filing Date Title
KR1019950051874A KR100240995B1 (ko) 1995-12-19 1995-12-19 절연피막의 밀착성이 우수한 무방향성 전기강판의 제조방법
PCT/KR1996/000078 WO1997022723A1 (fr) 1995-12-19 1996-06-01 Procede de fabrication de toles d'acier non orientees a usage electrique excellentes pour renforcer l'adhesion d'un film isolant
JP52266897A JP3176933B2 (ja) 1995-12-19 1996-06-01 絶縁被膜の密着性が優秀な無方向性電磁鋼板の製造方法
RU97115682A RU2134727C1 (ru) 1995-12-19 1996-06-01 Способ производства неориентированного электротехнического стального листа с высоким сцеплением слоя изолирующего покрытия
US08/894,394 US5803988A (en) 1995-12-19 1996-06-01 Method for manufacturing non-oriented electrical steel sheet showing superior adherence of insulating coated layer
DE19681215T DE19681215C2 (de) 1995-12-19 1996-06-01 Verfahren zur Herstellung einer Oberfläche mit überragender Haftfähigkeit einer isolierenden Überzugsschicht auf einem nicht orientierten Elektrostahlblech
CN96191991A CN1060815C (zh) 1995-12-19 1996-06-01 绝缘涂层具有优良粘附性的无取向电工钢板的制造方法

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Application Number Priority Date Filing Date Title
KR1019950051874A KR100240995B1 (ko) 1995-12-19 1995-12-19 절연피막의 밀착성이 우수한 무방향성 전기강판의 제조방법

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KR100240995B1 KR100240995B1 (ko) 2000-03-02

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US (1) US5803988A (ko)
JP (1) JP3176933B2 (ko)
KR (1) KR100240995B1 (ko)
CN (1) CN1060815C (ko)
DE (1) DE19681215C2 (ko)
RU (1) RU2134727C1 (ko)
WO (1) WO1997022723A1 (ko)

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Publication number Publication date
KR100240995B1 (ko) 2000-03-02
DE19681215C2 (de) 2003-04-17
CN1060815C (zh) 2001-01-17
DE19681215T1 (de) 1998-04-02
JP3176933B2 (ja) 2001-06-18
CN1175979A (zh) 1998-03-11
WO1997022723A1 (fr) 1997-06-26
US5803988A (en) 1998-09-08
RU2134727C1 (ru) 1999-08-20

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