ES2168668T3 - Proceso para el tratamiento del acero para aplicaciones electricas. - Google Patents

Proceso para el tratamiento del acero para aplicaciones electricas.

Info

Publication number
ES2168668T3
ES2168668T3 ES97940018T ES97940018T ES2168668T3 ES 2168668 T3 ES2168668 T3 ES 2168668T3 ES 97940018 T ES97940018 T ES 97940018T ES 97940018 T ES97940018 T ES 97940018T ES 2168668 T3 ES2168668 T3 ES 2168668T3
Authority
ES
Spain
Prior art keywords
treatment process
electrical applications
steel treatment
nitruration
treatment
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
ES97940018T
Other languages
English (en)
Inventor
Stefano Fortunati
Stefano Cicale
Giuseppe Abbruzzese
Susanna Matera
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.)
Acciai Speciali Terni SpA
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
Application granted granted Critical
Publication of ES2168668T3 publication Critical patent/ES2168668T3/es
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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
    • C21D8/1255—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
    • 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
    • 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
    • C21D8/1222—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
    • C21D8/1233—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
    • C21D8/1272—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
    • C21D8/1283—Application of a separating or insulating coating
    • 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
    • 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
    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Organic Chemistry (AREA)
  • Metallurgy (AREA)
  • Materials Engineering (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)
  • Crystals, And After-Treatments Of Crystals (AREA)
  • Photovoltaic Devices (AREA)

Abstract

DURANTE EL TRATAMIENTO DE UN ACERO OBTENIDO EN HORNO ELECTRICO, UNA COMBINACION CUIDADOSA DE UN TRATAMIENTO TERMICO DE DESBASTES DE TRATAMIENTOS ESPECIFICOS EN CONTINUO DE RECRISTALIZACION PRIMARIA Y DE NITRURACION PERMITEN CONTROLAR LA DISTRIBUCION, LA CANTIDAD Y LAS DIMENSIONES DE LOS PRECIPITADOS, Y OBTENER UN PRECIPITADO DE NITROGENO HOMOGENEO DURANTE LA FASE DE NITRURACION ASOCIADA CON UNA REACCION DIRECTA DEL NITROGENO ABSORBIDO CON ALUMINIO.
ES97940018T 1996-12-24 1997-07-24 Proceso para el tratamiento del acero para aplicaciones electricas. Expired - Lifetime ES2168668T3 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT96RM000903A IT1290171B1 (it) 1996-12-24 1996-12-24 Procedimento per il trattamento di acciaio al silicio, a grano orientato.

Publications (1)

Publication Number Publication Date
ES2168668T3 true ES2168668T3 (es) 2002-06-16

Family

ID=11404619

Family Applications (1)

Application Number Title Priority Date Filing Date
ES97940018T Expired - Lifetime ES2168668T3 (es) 1996-12-24 1997-07-24 Proceso para el tratamiento del acero para aplicaciones electricas.

Country Status (16)

Country Link
US (1) US6406557B1 (es)
EP (1) EP0950120B1 (es)
JP (1) JP2001506703A (es)
KR (1) KR100561140B1 (es)
CN (1) CN1073163C (es)
AT (1) ATE209700T1 (es)
AU (1) AU4202297A (es)
BR (1) BR9714234A (es)
CZ (1) CZ295507B6 (es)
DE (1) DE69708686T2 (es)
ES (1) ES2168668T3 (es)
IT (1) IT1290171B1 (es)
PL (1) PL182803B1 (es)
RU (1) RU2184787C2 (es)
SK (1) SK284523B6 (es)
WO (1) WO1998028453A1 (es)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
KR19990088437A (ko) * 1998-05-21 1999-12-27 에모또 간지 철손이매우낮은고자속밀도방향성전자강판및그제조방법
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
DE10334493B4 (de) * 2003-07-29 2006-01-05 Klingelnberg Gmbh Verfahren zum Fräsen von Spiralkegelrädern
CN100513060C (zh) * 2006-05-12 2009-07-15 武汉分享科工贸有限公司 无取向冷轧电工钢板制造方法
CN101768697B (zh) 2008-12-31 2012-09-19 宝山钢铁股份有限公司 用一次冷轧法生产取向硅钢的方法
DE102011107304A1 (de) 2011-07-06 2013-01-10 Thyssenkrupp Electrical Steel Gmbh Verfahren zum Herstellen eines kornorientierten, für elektrotechnische Anwendungen bestimmten Elektrostahlflachprodukts
CN102789872B (zh) * 2012-08-20 2015-07-15 烟台正海磁性材料股份有限公司 一种钕铁硼磁体及其制备方法
EP2940160B1 (en) * 2012-12-28 2017-02-01 JFE Steel Corporation Production method for grain-oriented electrical steel sheet
DE102014104106A1 (de) 2014-03-25 2015-10-01 Thyssenkrupp Electrical Steel Gmbh Verfahren zur Herstellung von hochpermeablem kornorientiertem Elektroband
US10900113B2 (en) 2014-09-04 2021-01-26 Jfe Steel Corporation Method for manufacturing grain-oriented electrical steel sheet, and nitriding apparatus
CN107075602B (zh) * 2014-09-26 2020-04-14 杰富意钢铁株式会社 方向性电磁钢板、方向性电磁钢板的制造方法、方向性电磁钢板的评价方法及铁心
DE102015114358B4 (de) 2015-08-28 2017-04-13 Thyssenkrupp Electrical Steel Gmbh Verfahren zum Herstellen eines kornorientierten Elektrobands und kornorientiertes Elektroband
CN110438439B (zh) * 2019-08-30 2021-03-19 武汉钢铁有限公司 气氛区域可调式的渗氮装置及其连续气体渗氮工艺
CN113174546B (zh) * 2021-04-15 2022-06-14 鞍钢股份有限公司 一种解决取向硅钢热轧板晶粒粗大的方法

Family Cites Families (15)

* 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
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
JP2782086B2 (ja) * 1989-05-29 1998-07-30 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
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
JP2883226B2 (ja) * 1991-06-27 1999-04-19 川崎製鉄株式会社 磁気特性の極めて優れた薄方向性けい素鋼板の製造方法
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
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
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
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
EP0950120A1 (en) 1999-10-20
ITRM960903A1 (it) 1998-06-24
ITRM960903A0 (it) 1996-12-24
CZ295507B6 (cs) 2005-08-17
SK86299A3 (en) 2000-01-18
KR20000062310A (ko) 2000-10-25
CN1073163C (zh) 2001-10-17
US6406557B1 (en) 2002-06-18
CN1244220A (zh) 2000-02-09
SK284523B6 (sk) 2005-05-05
DE69708686D1 (de) 2002-01-10
BR9714234A (pt) 2000-04-18
CZ230899A3 (cs) 2000-06-14
PL182803B1 (pl) 2002-03-29
WO1998028453A1 (en) 1998-07-02
PL333916A1 (en) 2000-01-31
EP0950120B1 (en) 2001-11-28
RU2184787C2 (ru) 2002-07-10
IT1290171B1 (it) 1998-10-19
DE69708686T2 (de) 2004-03-04
ATE209700T1 (de) 2001-12-15
AU4202297A (en) 1998-07-17
KR100561140B1 (ko) 2006-03-15
JP2001506703A (ja) 2001-05-22

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