EP0601549B1 - Elektroblech - Google Patents

Elektroblech Download PDF

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Publication number
EP0601549B1
EP0601549B1 EP93119720A EP93119720A EP0601549B1 EP 0601549 B1 EP0601549 B1 EP 0601549B1 EP 93119720 A EP93119720 A EP 93119720A EP 93119720 A EP93119720 A EP 93119720A EP 0601549 B1 EP0601549 B1 EP 0601549B1
Authority
EP
European Patent Office
Prior art keywords
content
grain boundaries
less
steel sheet
workability
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP93119720A
Other languages
English (en)
French (fr)
Other versions
EP0601549A1 (de
Inventor
Yasushi C/O Intellectual Prop. Dept. Tanaka
Tatsuhiko C/O Intellectual Prop. Dept. Hiratani
Masahiro C/O Intellectual Prop. Dept. Abe
Katsuji C/O Intellectual Prop. Dept. Kasai
Kazuhisa C/O Intellectual Prop. Dept. Okada
Masaru C/O Intellectual Prop. Dept. Ishikawa
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
JFE Engineering Corp
Original Assignee
NKK Corp
Nippon Kokan Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from JP4351859A external-priority patent/JP2956399B2/ja
Priority claimed from JP5028562A external-priority patent/JP2956406B2/ja
Application filed by NKK Corp, Nippon Kokan Ltd filed Critical NKK Corp
Publication of EP0601549A1 publication Critical patent/EP0601549A1/de
Application granted granted Critical
Publication of EP0601549B1 publication Critical patent/EP0601549B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • 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
    • C21D8/1272—Final recrystallisation annealing
    • 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
    • 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
    • C21D1/74—Methods of treatment in inert gas, controlled atmosphere, vacuum or pulverulent material
    • C21D1/76—Adjusting the composition of the atmosphere
    • 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
    • C21D1/74—Methods of treatment in inert gas, controlled atmosphere, vacuum or pulverulent material
    • C21D1/773—Methods of treatment in inert gas, controlled atmosphere, vacuum or pulverulent material under reduced pressure or vacuum
    • 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
    • C21D8/1227—Warm 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
    • C21D8/1255—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

Claims (8)

  1. Verfahren zur Herstellung eines Elektrostahlblechs, das eine Dicke von 0,5 mm oder weniger hat, und das 0,01 Gew.-% oder weniger C, 4 bis 10 Gew.-% Si, wovon ein Teil durch Al ersetzt sein kann, 0,5 Gew.-% oder weniger Mn, 0,01 Gew.-% oder weniger P, 0,01 Gew.-% oder weniger S, 0,01 Gew.-% oder weniger N, 0,02 Gew.-% oder weniger O und einen Ausgleich aus Fe und unvermeidlichen Verunreinigungen enthält, wobei das Blech (i) Kristallkörner, die einen mittleren Durchmesser von 2 mm oder weniger haben und (ii) Korngrenzen, die einen Sauerstoffgehalt von 30 Atom-% oder weniger haben, enthält; und wobei das Verfahren den folgenden Schritt umfaßt:
    - Diffundieren von zusätzlichem Silicium in ein Silicium-Stahlblech durch Behandeln des Blechs mit einem Gasgemisch, das ein siliconisierendes Gas und hochreines Stickstoffgas, das einen Taupunkt von -70°C hat, enthält.
  2. Verfahren nach Anspruch 1, wobei das siliconisierende Gas SiCl4 ist.
  3. Verfahren nach Anspruch 1, wobei das Stahlblech 0,2 Gew.-% oder weniger lösliches Al enthält.
  4. Verfahren nach Anspruch 3, wobei das Stahlblech 0,0005 bis 0,02 Gew.-% Sauerstoff enthält.
  5. Verfahren nach Anspruch 1, wobei die Korngrenzen einen Sauerstoffgehalt von 15 Atom-% oder weniger haben.
  6. Verfahren nach Anspruch 1, wobei die Korngrenzen einen Kohlenstoffgehalt von mindestens 0,5 Atom-% haben.
  7. Verfahren nach Anspruch 6, wobei die Korngrenzen einen Kohlenstoffgehalt von mindestens 0,8 Atom-% haben.
  8. Verfahren nach einem der vorangehenden Ansprüche, wobei die Korngrenzen einen Schwefelgehalt von 0,2 Atom-% oder weniger haben.
EP93119720A 1992-12-08 1993-12-07 Elektroblech Expired - Lifetime EP0601549B1 (de)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP351859/92 1992-12-08
JP4351859A JP2956399B2 (ja) 1992-12-08 1992-12-08 加工性の優れた高珪素電磁鋼板
JP5028562A JP2956406B2 (ja) 1993-01-25 1993-01-25 加工性の優れた高珪素電磁鋼板
JP28562/93 1993-01-25

Publications (2)

Publication Number Publication Date
EP0601549A1 EP0601549A1 (de) 1994-06-15
EP0601549B1 true EP0601549B1 (de) 1997-07-16

Family

ID=26366693

Family Applications (1)

Application Number Title Priority Date Filing Date
EP93119720A Expired - Lifetime EP0601549B1 (de) 1992-12-08 1993-12-07 Elektroblech

Country Status (4)

Country Link
EP (1) EP0601549B1 (de)
KR (1) KR960006447B1 (de)
CN (1) CN1035889C (de)
DE (1) DE69312233T2 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11505845B2 (en) 2013-12-24 2022-11-22 Posco Soft high-silicon steel sheet and manufacturing method thereof

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1252304C (zh) * 2003-11-27 2006-04-19 林栋樑 高硅钢及其制备方法
KR100721817B1 (ko) * 2005-12-14 2007-05-28 주식회사 포스코 자성이 우수한 무방향성 전기강판 및 그 제조방법
CA2992966C (en) 2015-09-17 2020-04-28 Jfe Steel Corporation High-silicon steel sheet and method for manufacturing the same

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5822357A (ja) * 1981-07-31 1983-02-09 Matsushita Electric Ind Co Ltd ｛１００｝＜０１１＞集合組織を有する高珪素鋼薄帯とその製造方法
JPS6033860A (ja) * 1983-08-05 1985-02-21 Matsushita Electric Ind Co Ltd 方向性珪素鉄薄帯の製造方法
EP0254932B1 (de) * 1986-08-01 1992-10-21 AlliedSignal Inc. Verfahren zum Wärmebehandeln von rasch abgeschreckten Fe-6,5% Si-Bändern
JP2701443B2 (ja) * 1989-04-05 1998-01-21 日本鋼管株式会社 優れた鉄損特性を有する高珪素鋼板およびその製造方法
JPH0726157B2 (ja) * 1990-01-04 1995-03-22 新日本製鐵株式会社 冷間加工性および磁気特性の良好な高珪素軟磁性鋼板の製造方法
US5354389A (en) * 1991-07-29 1994-10-11 Nkk Corporation Method of manufacturing silicon steel sheet having grains precisely arranged in Goss orientation

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11505845B2 (en) 2013-12-24 2022-11-22 Posco Soft high-silicon steel sheet and manufacturing method thereof

Also Published As

Publication number Publication date
DE69312233T2 (de) 1997-12-18
KR940014852A (ko) 1994-07-19
CN1089663A (zh) 1994-07-20
DE69312233D1 (de) 1997-08-21
KR960006447B1 (ko) 1996-05-16
EP0601549A1 (de) 1994-06-15
CN1035889C (zh) 1997-09-17

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