BR9714628A - Processo para o controle de inibição na produção de chapas elétricas orientadas no grão - Google Patents

Processo para o controle de inibição na produção de chapas elétricas orientadas no grão

Info

Publication number
BR9714628A
BR9714628A BR9714628-5A BR9714628A BR9714628A BR 9714628 A BR9714628 A BR 9714628A BR 9714628 A BR9714628 A BR 9714628A BR 9714628 A BR9714628 A BR 9714628A
Authority
BR
Brazil
Prior art keywords
grain
production
aluminum
oriented electric
electric plates
Prior art date
Application number
BR9714628-5A
Other languages
English (en)
Inventor
Stefano Cicale
Stefano Fortunati
Giuseppe Abbruzzese
Original Assignee
Acciai Speciali Terni Spa
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
Application filed by Acciai Speciali Terni Spa filed Critical Acciai Speciali Terni Spa
Publication of BR9714628A publication Critical patent/BR9714628A/pt

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
    • 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
    • C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
    • C21D1/18—Hardening; Quenching with or without subsequent tempering
    • 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
    • C21D6/00—Heat treatment of ferrous alloys
    • C21D6/008—Heat treatment of ferrous alloys containing Si
    • 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
    • C21D8/1233—Cold 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
    • C21D8/1272—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
    • 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
    • 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
    • C22C38/16—Ferrous alloys, e.g. steel alloys containing copper
    • 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
    • C21D8/1216—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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Organic Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Manufacturing & Machinery (AREA)
  • Electromagnetism (AREA)
  • Manufacturing Of Steel Electrode Plates (AREA)
  • Solid-Phase Diffusion Into Metallic Material Surfaces (AREA)
  • Soft Magnetic Materials (AREA)
  • Manufacturing Of Magnetic Record Carriers (AREA)
  • Measuring Magnetic Variables (AREA)
  • Seasonings (AREA)
  • Crystals, And After-Treatments Of Crystals (AREA)
  • Disintegrating Or Milling (AREA)
  • Coating With Molten Metal (AREA)
  • Medicines Containing Plant Substances (AREA)
  • Epoxy Compounds (AREA)
  • Electric Propulsion And Braking For Vehicles (AREA)

Abstract

"PROCESSO PARA O CONTROLE DE INIBIçãO NA PRODUçãO DE CHAPAS ELéTRICAS ORIENTADAS NO GRãO". Na produção de tira de aço elétrica orientada no grão, a inibição na tira laminada a quente é controlada através do balanceamento cuidadoso do teor de cobre, alumínio e carbono a fim de definir, desde a tira laminada a quente, tipo e quantidade de segundas fases precipitadas, para obter dimensões ótimas de grão durante o recozimento de descarbonetação e permitir um subsequente tratamento térmico contínuo de alta temperatura no qual, através da difusão de nitrogênio por toda a espessura da tira, o alumínio é diretamente precipitado como nitreto, atingindo desta maneira a quantidade de segundas fases necessária para o controle da orientação do grão no produto final.
BR9714628-5A 1997-03-14 1997-07-28 Processo para o controle de inibição na produção de chapas elétricas orientadas no grão BR9714628A (pt)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT97RM000146A IT1290977B1 (it) 1997-03-14 1997-03-14 Procedimento per il controllo dell'inibizione nella produzione di lamierino magnetico a grano orientato
PCT/EP1997/004088 WO1998041659A1 (en) 1997-03-14 1997-07-28 Process for the inhibition control in the production of grain-oriented electrical sheets

Publications (1)

Publication Number Publication Date
BR9714628A true BR9714628A (pt) 2000-03-28

Family

ID=11404859

Family Applications (1)

Application Number Title Priority Date Filing Date
BR9714628-5A BR9714628A (pt) 1997-03-14 1997-07-28 Processo para o controle de inibição na produção de chapas elétricas orientadas no grão

Country Status (16)

Country Link
US (1) US6361620B1 (pt)
EP (1) EP0966549B1 (pt)
JP (1) JP2001515540A (pt)
KR (1) KR100561143B1 (pt)
CN (1) CN1094982C (pt)
AT (1) ATE245709T1 (pt)
AU (1) AU4378097A (pt)
BR (1) BR9714628A (pt)
CZ (1) CZ295535B6 (pt)
DE (1) DE69723736T2 (pt)
ES (1) ES2203820T3 (pt)
IT (1) IT1290977B1 (pt)
PL (1) PL182838B1 (pt)
RU (1) RU2198230C2 (pt)
SK (1) SK284364B6 (pt)
WO (1) WO1998041659A1 (pt)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1299137B1 (it) 1998-03-10 2000-02-29 Acciai Speciali Terni Spa Processo per il controllo e la regolazione della ricristallizzazione secondaria nella produzione di lamierini magnetici 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
IT1316026B1 (it) 2000-12-18 2003-03-26 Acciai Speciali Terni Spa Procedimento per la fabbricazione di lamierini a grano orientato.
PL2133436T3 (pl) * 2007-04-05 2019-04-30 Nippon Steel & Sumitomo Metal Corp Sposób wyżarzania ciągłego taśmy stalowej mającej temperaturę Curie oraz urządzenie do jej wyżarzania ciągłego
ITRM20070218A1 (it) * 2007-04-18 2008-10-19 Ct Sviluppo Materiali Spa Procedimento per la produzione di lamierino magnetico a grano orientato
CN101643881B (zh) * 2008-08-08 2011-05-11 宝山钢铁股份有限公司 一种含铜取向硅钢的生产方法
JP4800442B2 (ja) * 2008-09-10 2011-10-26 新日本製鐵株式会社 方向性電磁鋼板の製造方法
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.
WO2011102456A1 (ja) 2010-02-18 2011-08-25 新日本製鐵株式会社 方向性電磁鋼板の製造方法
JP4943560B2 (ja) 2010-02-18 2012-05-30 新日本製鐵株式会社 方向性電磁鋼板の製造方法
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
JP5712491B2 (ja) * 2010-03-12 2015-05-07 Ｊｆｅスチール株式会社 方向性電磁鋼板の製造方法
KR101272353B1 (ko) * 2010-05-25 2013-06-07 신닛테츠스미킨 카부시키카이샤 일방향성 전자기 강판의 제조 방법
KR101633255B1 (ko) * 2014-12-18 2016-07-08 주식회사 포스코 방향성 전기강판 및 그 제조방법
KR102130428B1 (ko) * 2016-02-22 2020-07-06 제이에프이 스틸 가부시키가이샤 방향성 전자 강판의 제조 방법

Family Cites Families (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5472521A (en) * 1933-10-19 1995-12-05 Nippon Steel Corporation Production method of grain oriented electrical steel sheet having excellent magnetic characteristics
JPS5948934B2 (ja) * 1981-05-30 1984-11-29 新日本製鐵株式会社 高磁束密度一方向性電磁鋼板の製造方法
JPH0717961B2 (ja) * 1988-04-25 1995-03-01 新日本製鐵株式会社 磁気特性、皮膜特性ともに優れた一方向性電磁鋼板の製造方法
US5759293A (en) * 1989-01-07 1998-06-02 Nippon Steel Corporation Decarburization-annealed steel strip as an intermediate material for grain-oriented electrical steel strip
JPH0730397B2 (ja) * 1990-04-13 1995-04-05 新日本製鐵株式会社 磁気特性の優れた一方向性電磁鋼板の製造方法
JP2519615B2 (ja) * 1991-09-26 1996-07-31 新日本製鐵株式会社 磁気特性の優れた方向性電磁鋼板の製造方法
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
JP2724659B2 (ja) * 1992-11-26 1998-03-09 新日本製鐵株式会社 磁気特性の優れた高磁束密度一方向性電磁鋼板
DE4311151C1 (de) * 1993-04-05 1994-07-28 Thyssen Stahl Ag Verfahren zur Herstellung von kornorientierten Elektroblechen mit verbesserten Ummagnetisierungsverlusten
JP3240035B2 (ja) * 1994-07-22 2001-12-17 川崎製鉄株式会社 コイル全長にわたり磁気特性に優れた方向性けい素鋼板の製造方法
JP3598590B2 (ja) * 1994-12-05 2004-12-08 Ｊｆｅスチール株式会社 磁束密度が高くかつ鉄損の低い一方向性電磁鋼板
JPH08225843A (ja) * 1995-02-15 1996-09-03 Nippon Steel Corp 方向性珪素鋼板の製造方法
FR2731713B1 (fr) * 1995-03-14 1997-04-11 Ugine Sa Procede de fabrication d'une tole d'acier electrique a grains orientes pour la realisation notamment de circuits magnetiques de transformateurs
US5643370A (en) * 1995-05-16 1997-07-01 Armco Inc. Grain oriented electrical steel having high volume resistivity and method for producing same
JP2850823B2 (ja) * 1995-12-27 1999-01-27 日本電気株式会社 チップ型固体電解コンデンサの製造方法
US5885371A (en) * 1996-10-11 1999-03-23 Kawasaki Steel Corporation Method of producing grain-oriented magnetic steel sheet

Also Published As

Publication number Publication date
EP0966549A1 (en) 1999-12-29
ES2203820T3 (es) 2004-04-16
ITRM970146A1 (it) 1998-09-14
KR20000076233A (ko) 2000-12-26
CZ9903251A3 (cs) 2001-07-11
CN1094982C (zh) 2002-11-27
JP2001515540A (ja) 2001-09-18
SK284364B6 (sk) 2005-02-04
ATE245709T1 (de) 2003-08-15
PL335653A1 (en) 2000-05-08
PL182838B1 (pl) 2002-03-29
SK122599A3 (en) 2000-05-16
AU4378097A (en) 1998-10-12
DE69723736D1 (de) 2003-08-28
EP0966549B1 (en) 2003-07-23
RU2198230C2 (ru) 2003-02-10
KR100561143B1 (ko) 2006-03-15
WO1998041659A1 (en) 1998-09-24
DE69723736T2 (de) 2004-04-22
US6361620B1 (en) 2002-03-26
CN1249008A (zh) 2000-03-29
CZ295535B6 (cs) 2005-08-17
IT1290977B1 (it) 1998-12-14

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Legal Events

Date Code Title Description
B06A Patent application procedure suspended [chapter 6.1 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 28/07/1997, OBSERVADAS AS CONDICOES LEGAIS. NA PAGINA 8, ATUAL FOLHA 45, LINHA 25 DO RELATORIO DESCRITIVO, ONDE SE LE "1280" LEIA-SE "1280 OC" NA PAGINA 9, ATUAL FOLHA 46, LINHA 19 DO RELATORIO DESCRITIVO, ONDE SE LE "SEGUNDOS" LEIA-SE "S"

B21F Lapse acc. art. 78, item iv - on non-payment of the annual fees in time
B24J Lapse because of non-payment of annual fees (definitively: art 78 iv lpi, resolution 113/2013 art. 12)