BR0116245A - Processo para a produção de aço elétrico de grão orientado - Google Patents
Processo para a produção de aço elétrico de grão orientadoInfo
- Publication number
- BR0116245A BR0116245A BR0116245-4A BR0116245A BR0116245A BR 0116245 A BR0116245 A BR 0116245A BR 0116245 A BR0116245 A BR 0116245A BR 0116245 A BR0116245 A BR 0116245A
- Authority
- BR
- Brazil
- Prior art keywords
- strip
- production
- ppm
- phases
- cold rolling
- Prior art date
Links
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
- C21D8/1255—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
- C21D8/1205—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
-
- 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
- C21D2211/00—Microstructure comprising significant phases
- C21D2211/004—Dispersions; Precipitations
-
- 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
- C21D8/02—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
- C21D8/04—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips to produce plates or strips for deep-drawing
- C21D8/0421—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips to produce plates or strips for deep-drawing characterised by the working steps
- C21D8/0426—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
- C21D8/02—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
- C21D8/04—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips to produce plates or strips for deep-drawing
- C21D8/0421—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips to produce plates or strips for deep-drawing characterised by the working steps
- C21D8/0431—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
- C21D8/02—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
- C21D8/04—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips to produce plates or strips for deep-drawing
- C21D8/0421—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips to produce plates or strips for deep-drawing characterised by the working steps
- C21D8/0436—Cold rolling
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Manufacturing & Machinery (AREA)
- Crystallography & Structural Chemistry (AREA)
- Mechanical Engineering (AREA)
- Electromagnetism (AREA)
- Metallurgy (AREA)
- Thermal Sciences (AREA)
- Manufacturing Of Steel Electrode Plates (AREA)
- Soft Magnetic Materials (AREA)
- Polishing Bodies And Polishing Tools (AREA)
- Seasonings (AREA)
- Chemical Or Physical Treatment Of Fibers (AREA)
- Noodles (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
"PROCESSO PARA PRODUçãO DE TIRAS DE AçO ELéTRICO DE GRãO ORIENTADO". A presente invenção se refere a um processo para produção de tiras de aço elétrico de grão orientado, em que um aço silício compreendendo pelo menos 30 ppm de S é diretamente fundido na forma de uma tira, tendo de 1,5 a 4,5 mm de espessura e laminada a quente para uma espessura final entre 1,0 e 15 mm, caracterizado pelos seguintes estágios: - resfriamento e deformação da tira solidificada para obter uma distribuição das segundas fases, em que 600 cm^ -1^ < Iz < 1500 cm^ -1^ e Iz = 1,9 Fv/r (cm^ -1^), Fv sendo a fração de volume das segundas fases, estável em temperaturas inferiores a 800<198>C e r sendo o raio médio dos precipitados, em cm; - laminação a frio entre a solidificação e o embobinamento da tira, sob uma temperatura não inferior a 750<198>C, com uma taxa de redução entre 15 e 60%; - laminação a frio com taxa de redução de 60 a 92%; - recozimento da tira laminada a quente sob temperatura de 750-1100<198>C, com aumento do teor de nitrogênio de pelo menos 30 ppm em relação à composição inicial no núcleo da tira, em atmosfera de nitruração.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT2000RM000672A IT1316026B1 (it) | 2000-12-18 | 2000-12-18 | Procedimento per la fabbricazione di lamierini a grano orientato. |
PCT/EP2001/014879 WO2002050314A2 (en) | 2000-12-18 | 2001-12-17 | Process for the production of grain oriented electrical steel strips |
Publications (2)
Publication Number | Publication Date |
---|---|
BR0116245A true BR0116245A (pt) | 2004-01-13 |
BR0116245B1 BR0116245B1 (pt) | 2010-06-01 |
Family
ID=11455060
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
BRPI0116245-4A BR0116245B1 (pt) | 2000-12-18 | 2001-12-17 | processo para produção de aço elétrico de grão orientado. |
Country Status (16)
Country | Link |
---|---|
US (1) | US6893510B2 (pt) |
EP (1) | EP1356127B9 (pt) |
JP (1) | JP2004516381A (pt) |
KR (1) | KR100830280B1 (pt) |
CN (1) | CN1242077C (pt) |
AT (1) | ATE294877T1 (pt) |
AU (1) | AU2002231713A1 (pt) |
BR (1) | BR0116245B1 (pt) |
CZ (1) | CZ20031687A3 (pt) |
DE (1) | DE60110643T2 (pt) |
ES (1) | ES2241895T3 (pt) |
IT (1) | IT1316026B1 (pt) |
PL (1) | PL199162B1 (pt) |
RU (1) | RU2285730C2 (pt) |
SK (1) | SK286629B6 (pt) |
WO (1) | WO2002050314A2 (pt) |
Families Citing this family (19)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
IT1316029B1 (it) * | 2000-12-18 | 2003-03-26 | Acciai Speciali Terni Spa | Processo per la produzione di acciaio magnetico a grano orientato. |
DE102005052774A1 (de) * | 2004-12-21 | 2006-06-29 | Salzgitter Flachstahl Gmbh | Verfahren zum Erzeugen von Warmbändern aus Leichtbaustahl |
US7736444B1 (en) * | 2006-04-19 | 2010-06-15 | Silicon Steel Technology, Inc. | Method and system for manufacturing electrical silicon steel |
KR100797997B1 (ko) * | 2006-12-27 | 2008-01-28 | 주식회사 포스코 | 자성과 생산성이 우수한 방향성 전기강판의 제조방법 |
KR100817168B1 (ko) * | 2006-12-27 | 2008-03-27 | 주식회사 포스코 | 자성이 우수한 방향성 전기강판의 제조방법 |
IT1396714B1 (it) | 2008-11-18 | 2012-12-14 | Ct Sviluppo Materiali Spa | Procedimento per la produzione di lamierino magnetico a grano orientato a partire da bramma sottile. |
CN102257173B (zh) * | 2008-12-16 | 2013-12-04 | 新日铁住金株式会社 | 方向性电磁钢板及其制造方法 |
EP2460902B1 (en) * | 2009-07-31 | 2016-05-04 | JFE Steel Corporation | Grain-oriented magnetic steel sheet |
US8876990B2 (en) * | 2009-08-20 | 2014-11-04 | Massachusetts Institute Of Technology | Thermo-mechanical process to enhance the quality of grain boundary networks |
JP4840518B2 (ja) * | 2010-02-24 | 2011-12-21 | Jfeスチール株式会社 | 方向性電磁鋼板の製造方法 |
DE102011107304A1 (de) * | 2011-07-06 | 2013-01-10 | Thyssenkrupp Electrical Steel Gmbh | Verfahren zum Herstellen eines kornorientierten, für elektrotechnische Anwendungen bestimmten Elektrostahlflachprodukts |
DE102011054004A1 (de) * | 2011-09-28 | 2013-03-28 | Thyssenkrupp Electrical Steel Gmbh | Verfahren zum Herstellen eines kornorientierten, für elektrotechnische Anwendungen bestimmten Elektrobands oder -blechs |
CN102517592A (zh) * | 2011-12-13 | 2012-06-27 | 武汉钢铁(集团)公司 | 一种高磁感取向硅钢带渗氮处理方法 |
EP2878688B1 (en) * | 2012-07-26 | 2019-07-03 | JFE Steel Corporation | Method for producing grain-oriented electrical steel sheet |
CN104870666B (zh) * | 2012-12-28 | 2017-05-10 | 杰富意钢铁株式会社 | 方向性电磁钢板的制造方法和方向性电磁钢板制造用的一次再结晶钢板 |
KR101633255B1 (ko) | 2014-12-18 | 2016-07-08 | 주식회사 포스코 | 방향성 전기강판 및 그 제조방법 |
CN107630133B (zh) * | 2016-07-18 | 2019-06-28 | 鞍钢股份有限公司 | 一种变频特性优良的高牌号电工钢产品的生产方法 |
KR101947026B1 (ko) * | 2016-12-22 | 2019-02-12 | 주식회사 포스코 | 방향성 전기강판 및 이의 제조방법 |
KR102012319B1 (ko) * | 2017-12-26 | 2019-08-20 | 주식회사 포스코 | 방향성 전기강판 및 그 제조방법 |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0326912B1 (en) | 1988-02-03 | 1994-07-27 | Nippon Steel Corporation | Process for production of grain oriented electrical steel sheet having high flux density |
US5049204A (en) * | 1989-03-30 | 1991-09-17 | Nippon Steel Corporation | Process for producing a grain-oriented electrical steel sheet by means of rapid quench-solidification process |
IT1230313B (it) * | 1989-07-07 | 1991-10-18 | Somova Spa | Inalatore per medicamenti in capsule. |
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 |
IT1290977B1 (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 |
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 |
EP1162280B1 (en) * | 2000-06-05 | 2013-08-07 | Nippon Steel & Sumitomo Metal Corporation | Method for producing a grain-oriented electrical steel sheet excellent in magnetic properties |
-
2000
- 2000-12-18 IT IT2000RM000672A patent/IT1316026B1/it active
-
2001
- 2001-12-17 SK SK757-2003A patent/SK286629B6/sk not_active IP Right Cessation
- 2001-12-17 CZ CZ20031687A patent/CZ20031687A3/cs unknown
- 2001-12-17 DE DE60110643T patent/DE60110643T2/de not_active Expired - Lifetime
- 2001-12-17 AT AT01991857T patent/ATE294877T1/de active
- 2001-12-17 AU AU2002231713A patent/AU2002231713A1/en not_active Abandoned
- 2001-12-17 BR BRPI0116245-4A patent/BR0116245B1/pt not_active IP Right Cessation
- 2001-12-17 WO PCT/EP2001/014879 patent/WO2002050314A2/en active IP Right Grant
- 2001-12-17 JP JP2002551193A patent/JP2004516381A/ja active Pending
- 2001-12-17 CN CNB018208371A patent/CN1242077C/zh not_active Expired - Fee Related
- 2001-12-17 ES ES01991857T patent/ES2241895T3/es not_active Expired - Lifetime
- 2001-12-17 RU RU2003122339/02A patent/RU2285730C2/ru not_active IP Right Cessation
- 2001-12-17 KR KR1020037008095A patent/KR100830280B1/ko active IP Right Grant
- 2001-12-17 EP EP01991857A patent/EP1356127B9/en not_active Expired - Lifetime
- 2001-12-17 PL PL362277A patent/PL199162B1/pl unknown
- 2001-12-17 US US10/450,968 patent/US6893510B2/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
ITRM20000672A1 (it) | 2002-06-18 |
EP1356127B9 (en) | 2006-01-11 |
CN1481444A (zh) | 2004-03-10 |
ITRM20000672A0 (it) | 2000-12-18 |
BR0116245B1 (pt) | 2010-06-01 |
EP1356127A2 (en) | 2003-10-29 |
PL199162B1 (pl) | 2008-08-29 |
KR20030076991A (ko) | 2003-09-29 |
IT1316026B1 (it) | 2003-03-26 |
RU2285730C2 (ru) | 2006-10-20 |
RU2003122339A (ru) | 2005-01-10 |
PL362277A1 (en) | 2004-10-18 |
EP1356127B1 (en) | 2005-05-04 |
DE60110643D1 (de) | 2005-06-09 |
SK7572003A3 (en) | 2003-10-07 |
ES2241895T3 (es) | 2005-11-01 |
WO2002050314A2 (en) | 2002-06-27 |
DE60110643T2 (de) | 2006-02-02 |
US6893510B2 (en) | 2005-05-17 |
AU2002231713A1 (en) | 2002-07-01 |
WO2002050314A3 (en) | 2002-08-22 |
CN1242077C (zh) | 2006-02-15 |
SK286629B6 (sk) | 2009-02-05 |
CZ20031687A3 (cs) | 2004-02-18 |
KR100830280B1 (ko) | 2008-05-16 |
US20040069377A1 (en) | 2004-04-15 |
JP2004516381A (ja) | 2004-06-03 |
ATE294877T1 (de) | 2005-05-15 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
B07A | Application suspended after technical examination (opinion) [chapter 7.1 patent gazette] | ||
B09A | Decision: intention to grant [chapter 9.1 patent gazette] | ||
B16A | Patent or certificate of addition of invention granted [chapter 16.1 patent gazette] |
Free format text: PRAZO DE VALIDADE: 20 (VINTE) ANOS CONTADOS A PARTIR DE 17/12/2001, OBSERVADAS AS CONDICOES LEGAIS. |
|
B21F | Lapse acc. art. 78, item iv - on non-payment of the annual fees in time |
Free format text: REFERENTE A 14A ANUIDADE. |
|
B24J | Lapse because of non-payment of annual fees (definitively: art 78 iv lpi, resolution 113/2013 art. 12) |
Free format text: EM VIRTUDE DA EXTINCAO PUBLICADA NA RPI 2342 DE 24-11-2015 E CONSIDERANDO AUSENCIA DE MANIFESTACAO DENTRO DOS PRAZOS LEGAIS, INFORMO QUE CABE SER MANTIDA A EXTINCAO DA PATENTE E SEUS CERTIFICADOS, CONFORME O DISPOSTO NO ARTIGO 12, DA RESOLUCAO 113/2013. |