JP2001500568A - 薄いスラブからの高磁気特性を備えた粒配向性電気鋼ストリップの製造方法 - Google Patents
薄いスラブからの高磁気特性を備えた粒配向性電気鋼ストリップの製造方法Info
- Publication number
- JP2001500568A JP2001500568A JP10511211A JP51121198A JP2001500568A JP 2001500568 A JP2001500568 A JP 2001500568A JP 10511211 A JP10511211 A JP 10511211A JP 51121198 A JP51121198 A JP 51121198A JP 2001500568 A JP2001500568 A JP 2001500568A
- Authority
- JP
- Japan
- Prior art keywords
- temperature
- annealing
- strip
- rolling
- ppm
- 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.)
- Granted
Links
Classifications
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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
- 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
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
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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
- 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
- C21D8/1211—Rapid solidification; Thin strip casting
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- 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
- H01F1/032—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 hard-magnetic materials
- H01F1/04—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 hard-magnetic materials metals or alloys
-
- 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
-
- 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
- C21D8/1255—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
- 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
- C21D8/1261—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 following 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
- C21D8/1272—Final recrystallisation annealing
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Crystallography & Structural Chemistry (AREA)
- Manufacturing & Machinery (AREA)
- Thermal Sciences (AREA)
- Electromagnetism (AREA)
- Power Engineering (AREA)
- Dispersion Chemistry (AREA)
- Manufacturing Of Steel Electrode Plates (AREA)
- Soft Magnetic Materials (AREA)
- Manufacturing Of Magnetic Record Carriers (AREA)
- Paints Or Removers (AREA)
- Hard Magnetic Materials (AREA)
- Solid-Phase Diffusion Into Metallic Material Surfaces (AREA)
- Continuous Casting (AREA)
Abstract
Description
Claims (1)
- 【特許請求の範囲】 1.重量%で、2.5〜5のSi、0.002〜0.075のC、0.05〜0.4のMn、<0.015のS(また はS+0.503 Se)、0.010〜0.045のAl、0.003〜0.0130のN、0.2までのSn、0.040 〜0.3のCu、残部として鉄と微量の不純物を含有する鋼を連続鋳造し、高温焼 鈍し、熱間圧延し、冷間圧延を1段階でまたは中間焼鈍をともなった複数の段 階でおこない、このようにして得られる冷間圧延ストリップを1次焼鈍および 脱炭をおこなうために焼鈍し、最終の2次再結晶処理のために焼鈍分離剤で被 覆して箱焼鈍することを含んでなる、高磁気特性の珪素鋼ストリップの製造方 法であって、以下の協力関係での組合せ: (i)20〜80mmの厚さの薄いスラブを、鋳造速度3〜5m/min、鋳造時の鋼過 熱20〜40℃、30〜100s以内での完全凝固を得るような冷却速度、鋳型振動振幅 1〜10mm、振動周期200〜400サイクル/分で、連続鋳造すること; (ii)このようにして得られたスラブを1150〜1300℃の温度で平衡化するこ と; (iii)平衡化したスラブを圧延開始温度1000〜1200℃、圧延最終温度850〜 1050℃で熱間圧延すること; (iv)熱間圧延したストリップを900〜1170℃の温度で30〜300sにわたり連続 焼鈍し、これを850℃より低くない温度に冷却し、この温度を30〜300sにわた り保持し、その後これをできる限り沸騰水中で冷却すること; (v)ストリップを1段階でまたは中間焼鈍をともなって数段階で冷間圧延し 、最終段階を少なくとも圧延縮小率80%でおこなうこと; (vi)pH2O/pH2が0.3〜0.7の湿潤窒素/水素雰囲気中で850〜1050℃の温度 で合計時間100〜350sにわたり、冷間圧延したストリップを連続焼鈍するこ と; (vii)焼鈍分離剤でストリップを被覆し、コイルに巻き上げ、このコイルを 加熱中に次の組成の雰囲気中で箱焼鈍すること:すなわち、900℃までは少な くとも30%volの窒素と混合した水素、1100〜1200℃までは少なくとも40%volの 窒素と混合した水素、その後はコイルを純水素中でこの温度に保持する こと; を特徴とする上記方法。 2.スラブの厚さが50〜60mmである、請求項1に記載の方法。 3.鋼の炭素含有量が20〜100ppmである、請求項1または2に記載の方法。 4.鋼が400〜3000ppmの銅を含有する、請求項1〜3のいずれか1項に記載の 方法。 5.銅含有量が700〜2000ppmである、請求項4に記載の方法。 6.鋼が2000ppmまでの錫を含有する、請求項1〜5のいずれか1項に記載の方 法。 7.錫含有量が1000〜1700ppmである、請求項6に記載の方法。 8.連続鋳造において、柱状粒に対する等軸粒の割合を35〜75%とし、等軸粒の 寸法が0.7〜2.5mmとなるように鋳造パラメーターを選択する、請求項1〜7 のいずれか1項に記載の方法。 9.柱状粒に対する等軸粒の割合を50%より高くする、請求項8に記載の方法。 10.冷間圧延ストリップを連続焼鈍した後、0.5〜100g/m3の水蒸気量をもつ雰 囲気中で、900〜1050℃の温度で窒化処理をおこなう、請求項1〜9のいずれ か1項に記載の方法。 11.脱炭焼鈍中、温度を950℃以下に保持し、かつ、窒素のストリップ中への拡 散を50ppmまで許容するように、後続の箱焼鈍の雰囲気中の窒素含有量を選択 する、請求項l〜9のいずれか1項に記載の方法。 12.最後の冷間圧延段階において、ストリップの温度を少なくとも2つの圧延パ スにおいて少なくとも200℃に維持する、請求項l〜11のいずれか1項に記載 の方法。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT96RM000600A IT1284268B1 (it) | 1996-08-30 | 1996-08-30 | Procedimento per la produzione di lamierino magnetico a grano orientato, con elevate caratteristiche magnetiche, a partire da |
IT96A000600 | 1996-08-30 | ||
PCT/EP1997/003921 WO1998008987A1 (en) | 1996-08-30 | 1997-07-21 | Process for the production of grain oriented electrical steel strip having high magnetic characteristics, starting from thin slabs |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2001500568A true JP2001500568A (ja) | 2001-01-16 |
JP4653261B2 JP4653261B2 (ja) | 2011-03-16 |
Family
ID=11404407
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP51121198A Expired - Lifetime JP4653261B2 (ja) | 1996-08-30 | 1997-07-21 | 薄いスラブからの高磁気特性を備えた粒配向性電気鋼ストリップの製造方法 |
Country Status (18)
Country | Link |
---|---|
US (1) | US6296719B1 (ja) |
EP (1) | EP0922119B1 (ja) |
JP (1) | JP4653261B2 (ja) |
KR (1) | KR100524441B1 (ja) |
CN (1) | CN1073164C (ja) |
AT (1) | ATE196780T1 (ja) |
AU (1) | AU3695997A (ja) |
BR (1) | BR9711270A (ja) |
CZ (1) | CZ291167B6 (ja) |
DE (1) | DE69703246T2 (ja) |
ES (1) | ES2153208T3 (ja) |
GR (1) | GR3035165T3 (ja) |
IN (1) | IN192028B (ja) |
IT (1) | IT1284268B1 (ja) |
PL (1) | PL182816B1 (ja) |
RU (1) | RU2194775C2 (ja) |
SK (1) | SK283599B6 (ja) |
WO (1) | WO1998008987A1 (ja) |
Cited By (1)
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JP2011518947A (ja) * | 2008-12-31 | 2011-06-30 | 宝山鋼鉄股▲分▼有限公司 | 一回冷間圧延法による方向性珪素鋼の製造方法 |
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IT1290978B1 (it) | 1997-03-14 | 1998-12-14 | Acciai Speciali Terni Spa | Procedimento per il controllo dell'inibizione nella produzione di lamierino magnetico a grano orientato |
EP1728885B1 (en) * | 1998-03-11 | 2012-06-13 | Nippon Steel Corporation | Method for producing a grain-oriented electrical steel sheet |
EP0947597B2 (en) † | 1998-03-30 | 2015-06-10 | Nippon Steel & Sumitomo Metal Corporation | Method of producing a grain-oriented electrical steel sheet excellent in magnetic characteristics |
KR100462913B1 (ko) * | 1998-12-28 | 2004-12-23 | 신닛뽄세이테쯔 카부시키카이샤 | 연속 주조 빌릿 및 그 제조방법 |
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IT1316029B1 (it) * | 2000-12-18 | 2003-03-26 | Acciai Speciali Terni Spa | Processo per la produzione di acciaio magnetico a grano orientato. |
JP4258349B2 (ja) * | 2002-10-29 | 2009-04-30 | Jfeスチール株式会社 | 方向性電磁鋼板の製造方法 |
CN1295035C (zh) * | 2004-03-30 | 2007-01-17 | 东北大学 | 一种取向硅钢极薄带的制造方法 |
CN100381598C (zh) * | 2004-12-27 | 2008-04-16 | 宝山钢铁股份有限公司 | 一种取向硅钢及其生产方法和装置 |
KR100650554B1 (ko) | 2005-07-29 | 2006-11-29 | 주식회사 포스코 | 두께가 두꺼운 방향성 전기강판의 제조방법 |
CN100389222C (zh) * | 2005-12-13 | 2008-05-21 | 武汉钢铁(集团)公司 | 提高含铜取向硅钢电磁性能和底层质量的生产方法 |
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BR112012023165B1 (pt) * | 2010-03-17 | 2019-02-12 | Nippon Steel & Sumitomo Metal Corporation | Método de produção de chapa de aço elétrico com grão orientado |
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JP5871137B2 (ja) | 2012-12-12 | 2016-03-01 | Jfeスチール株式会社 | 方向性電磁鋼板 |
CN103774042B (zh) * | 2013-12-23 | 2016-05-25 | 钢铁研究总院 | 一种薄板坯连铸连轧高磁感取向硅钢及其制备方法 |
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JPS5651216B2 (ja) * | 1977-12-17 | 1981-12-03 |
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KR960010811B1 (ko) * | 1992-04-16 | 1996-08-09 | 신니뽄세이데스 가부시끼가이샤 | 자성이 우수한 입자배향 전기 강 시트의 제조방법 |
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 |
DE4311151C1 (de) * | 1993-04-05 | 1994-07-28 | Thyssen Stahl Ag | Verfahren zur Herstellung von kornorientierten Elektroblechen mit verbesserten Ummagnetisierungsverlusten |
JPH06336611A (ja) * | 1993-05-27 | 1994-12-06 | Nippon Steel Corp | 磁気特性の優れた一方向性電磁鋼板の製造方法 |
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-
1996
- 1996-08-30 IT IT96RM000600A patent/IT1284268B1/it active IP Right Grant
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1997
- 1997-07-21 ES ES97933689T patent/ES2153208T3/es not_active Expired - Lifetime
- 1997-07-21 CZ CZ1999671A patent/CZ291167B6/cs not_active IP Right Cessation
- 1997-07-21 EP EP97933689A patent/EP0922119B1/en not_active Expired - Lifetime
- 1997-07-21 AU AU36959/97A patent/AU3695997A/en not_active Abandoned
- 1997-07-21 RU RU99106588/02A patent/RU2194775C2/ru active
- 1997-07-21 DE DE69703246T patent/DE69703246T2/de not_active Expired - Lifetime
- 1997-07-21 KR KR10-1999-7001256A patent/KR100524441B1/ko not_active IP Right Cessation
- 1997-07-21 AT AT97933689T patent/ATE196780T1/de active
- 1997-07-21 JP JP51121198A patent/JP4653261B2/ja not_active Expired - Lifetime
- 1997-07-21 WO PCT/EP1997/003921 patent/WO1998008987A1/en active IP Right Grant
- 1997-07-21 SK SK262-99A patent/SK283599B6/sk not_active IP Right Cessation
- 1997-07-21 CN CN97197500A patent/CN1073164C/zh not_active Expired - Lifetime
- 1997-07-21 BR BR9711270-4A patent/BR9711270A/pt not_active IP Right Cessation
- 1997-07-21 PL PL97331735A patent/PL182816B1/pl unknown
- 1997-07-21 US US09/243,000 patent/US6296719B1/en not_active Expired - Lifetime
- 1997-07-23 IN IN1375CA1997 patent/IN192028B/en unknown
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2000
- 2000-12-28 GR GR20000402852T patent/GR3035165T3/el not_active IP Right Cessation
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
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JP2011518947A (ja) * | 2008-12-31 | 2011-06-30 | 宝山鋼鉄股▲分▼有限公司 | 一回冷間圧延法による方向性珪素鋼の製造方法 |
Also Published As
Publication number | Publication date |
---|---|
IT1284268B1 (it) | 1998-05-14 |
EP0922119A1 (en) | 1999-06-16 |
ITRM960600A1 (it) | 1998-03-02 |
JP4653261B2 (ja) | 2011-03-16 |
PL182816B1 (pl) | 2002-03-29 |
US6296719B1 (en) | 2001-10-02 |
CN1073164C (zh) | 2001-10-17 |
CZ67199A3 (cs) | 2000-01-12 |
BR9711270A (pt) | 2000-01-18 |
KR100524441B1 (ko) | 2005-10-26 |
KR20000029990A (ko) | 2000-05-25 |
DE69703246T2 (de) | 2001-04-26 |
PL331735A1 (en) | 1999-08-02 |
DE69703246D1 (de) | 2000-11-09 |
EP0922119B1 (en) | 2000-10-04 |
SK283599B6 (sk) | 2003-10-07 |
IN192028B (ja) | 2004-02-07 |
CZ291167B6 (cs) | 2003-01-15 |
WO1998008987A1 (en) | 1998-03-05 |
GR3035165T3 (en) | 2001-04-30 |
ATE196780T1 (de) | 2000-10-15 |
SK26299A3 (en) | 2000-04-10 |
AU3695997A (en) | 1998-03-19 |
RU2194775C2 (ru) | 2002-12-20 |
ES2153208T3 (es) | 2001-02-16 |
CN1228817A (zh) | 1999-09-15 |
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