BR9605937A - Manufacturing process of an electric grain steel sheet oriented mainly for transformers - Google Patents
Manufacturing process of an electric grain steel sheet oriented mainly for transformersInfo
- Publication number
- BR9605937A BR9605937A BR9605937A BR9605937A BR9605937A BR 9605937 A BR9605937 A BR 9605937A BR 9605937 A BR9605937 A BR 9605937A BR 9605937 A BR9605937 A BR 9605937A BR 9605937 A BR9605937 A BR 9605937A
- Authority
- BR
- Brazil
- Prior art keywords
- steel sheet
- transformers
- manufacturing process
- grain steel
- oriented mainly
- 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
- 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
-
- 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
- C21D8/1255—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
- 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
- C21D8/1266—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 between cold rolling steps
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Organic Chemistry (AREA)
- Metallurgy (AREA)
- Materials Engineering (AREA)
- Crystallography & Structural Chemistry (AREA)
- Thermal Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Electromagnetism (AREA)
- Manufacturing Of Steel Electrode Plates (AREA)
- Soft Magnetic Materials (AREA)
- Heat Treatment Of Sheet Steel (AREA)
Abstract
Electrical steel sheet is made by concasting steel of composition in wt. %:- 0.02-0.09 C; 2.5-4 Si; 0.027-0.17 Mn; 0.007-0.02 S; 0.01-0.03 Al; 0.004-0.012 N; 0.06-5 Cu; balance Fe and impurities. The concast slab or strip is reheated to 1200-1300 deg. C before being hot rolled to a thickness of 1-5 mm and then coiled at 500-700 deg. C. The strip is then cold rolled to below 0.5 mm, annealed to produce a primary recrystallisation and a decarburisation in a moist atmosphere and then coated with MgO. Finally it is annealed to produce a secondary recrystallisation and coated with an insulation layer which is fired.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9502916A FR2731713B1 (en) | 1995-03-14 | 1995-03-14 | PROCESS FOR THE MANUFACTURE OF A SHEET OF ELECTRIC STEEL WITH ORIENTED GRAINS FOR THE PRODUCTION OF MAGNETIC TRANSFORMER CIRCUITS IN PARTICULAR |
PCT/FR1996/000364 WO1996028576A1 (en) | 1995-03-14 | 1996-03-08 | Method for making a grain-oriented electric steel sheet, particularly for transformers |
Publications (1)
Publication Number | Publication Date |
---|---|
BR9605937A true BR9605937A (en) | 1997-08-12 |
Family
ID=9476993
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
BR9605937A BR9605937A (en) | 1995-03-14 | 1996-03-08 | Manufacturing process of an electric grain steel sheet oriented mainly for transformers |
Country Status (13)
Country | Link |
---|---|
EP (1) | EP0732413B1 (en) |
JP (1) | JPH10500454A (en) |
KR (1) | KR970702932A (en) |
CN (1) | CN1148411A (en) |
AT (1) | ATE206171T1 (en) |
BR (1) | BR9605937A (en) |
CZ (1) | CZ284873B6 (en) |
DE (1) | DE69615429T2 (en) |
ES (1) | ES2161988T3 (en) |
FR (1) | FR2731713B1 (en) |
PL (1) | PL317155A1 (en) |
PT (1) | PT732413E (en) |
WO (1) | WO1996028576A1 (en) |
Families Citing this family (26)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19628136C1 (en) * | 1996-07-12 | 1997-04-24 | Thyssen Stahl Ag | Production of grain-orientated electrical sheets |
DE19628137C1 (en) * | 1996-07-12 | 1997-04-10 | Thyssen Stahl Ag | Grain-oriented electrical steel sheet prodn. |
IT1290171B1 (en) * | 1996-12-24 | 1998-10-19 | Acciai Speciali Terni Spa | PROCEDURE FOR THE TREATMENT OF SILICON, GRAIN ORIENTED STEEL. |
IT1290977B1 (en) * | 1997-03-14 | 1998-12-14 | Acciai Speciali Terni Spa | PROCEDURE FOR CHECKING THE INHIBITION IN THE PRODUCTION OF GRAIN ORIENTED MAGNETIC SHEET |
IT1290978B1 (en) * | 1997-03-14 | 1998-12-14 | Acciai Speciali Terni Spa | PROCEDURE FOR CHECKING THE INHIBITION IN THE PRODUCTION OF GRAIN ORIENTED MAGNETIC SHEET |
FR2761081B1 (en) * | 1997-03-21 | 1999-04-30 | Usinor | METHOD FOR MANUFACTURING AN ELECTRIC STEEL SHEET WITH ORIENTED GRAINS FOR THE MANUFACTURE, IN PARTICULAR OF MAGNETIC CIRCUITS OF TRANSFORMERS |
AU2698897A (en) * | 1997-04-16 | 1998-11-11 | Acciai Speciali Terni S.P.A. | New process for the production of grain oriented electrical steel from thin slabs |
WO1998048062A1 (en) * | 1997-04-24 | 1998-10-29 | Acciai Speciali Terni S.P.A. | New process for the production of high-permeability electrical steel from thin slabs |
DE19816158A1 (en) * | 1998-04-09 | 1999-10-14 | G K Steel Trading Gmbh | Process for the production of grain-oriented anisotropic, electrotechnical steel sheets |
KR100658408B1 (en) * | 1998-10-27 | 2006-12-15 | 제이에프이 스틸 가부시키가이샤 | An electromagnetic steel sheet having superior formability and magnetic properties and a process for the production of the same |
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 |
IT1316029B1 (en) * | 2000-12-18 | 2003-03-26 | Acciai Speciali Terni Spa | ORIENTED GRAIN MAGNETIC STEEL PRODUCTION PROCESS. |
CN100389222C (en) * | 2005-12-13 | 2008-05-21 | 武汉钢铁(集团)公司 | Production method for improving electromagnetic performance and bottom layer quality of copper containing orientation silicium steel |
CN101545072B (en) * | 2008-03-25 | 2012-07-04 | 宝山钢铁股份有限公司 | Method for producing oriented silicon steel having high electromagnetic performance |
CN101643881B (en) | 2008-08-08 | 2011-05-11 | 宝山钢铁股份有限公司 | Method for producing silicon steel with orientedgrain including copper |
IT1396714B1 (en) * | 2008-11-18 | 2012-12-14 | Ct Sviluppo Materiali Spa | PROCEDURE FOR THE PRODUCTION OF MAGNETIC SHEET WITH ORIENTED GRAIN FROM THE THIN BRAMMA. |
JP5353234B2 (en) * | 2008-12-26 | 2013-11-27 | Jfeスチール株式会社 | Method for producing grain-oriented electrical steel sheet |
JP5434438B2 (en) * | 2009-09-30 | 2014-03-05 | Jfeスチール株式会社 | Manufacturing method of unidirectional electrical steel sheet |
CN102939394A (en) * | 2010-06-10 | 2013-02-20 | 塔塔钢铁艾默伊登有限责任公司 | Method of producing an austenitic steel |
CN102071303B (en) * | 2011-01-30 | 2012-11-21 | 中冶南方(武汉)威仕工业炉有限公司 | Strip threading method of strip steel in silicon steel continuous annealing drying furnace |
CN103667602B (en) * | 2013-11-26 | 2015-04-08 | 山西太钢不锈钢股份有限公司 | Method for increasing nitrogen for RH refined molten steel of grain-oriented electrical steel |
CZ2014325A3 (en) * | 2014-05-12 | 2015-11-11 | Arcelormittal Ostrava A.S. | Strip of oriented transformer steel and process for producing thereof |
CN106048411A (en) * | 2016-06-27 | 2016-10-26 | 马鞍山钢铁股份有限公司 | Cold-rolled oriented electrical steel for transformer and production method of cold-rolled oriented electrical steel |
CN111020140A (en) * | 2019-12-17 | 2020-04-17 | 无锡晶龙华特电工有限公司 | Magnesium oxide annealing separant for oriented silicon steel with excellent magnetism and coating process thereof |
JP7463976B2 (en) * | 2020-02-28 | 2024-04-09 | Jfeスチール株式会社 | Manufacturing method of grain-oriented electrical steel sheet |
CN112522609B (en) * | 2020-11-18 | 2021-12-14 | 武汉钢铁有限公司 | High magnetic induction oriented silicon steel containing composite inhibitor and production method thereof |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3671337A (en) * | 1969-02-21 | 1972-06-20 | Nippon Steel Corp | Process for producing grain oriented electromagnetic steel sheets having excellent magnetic characteristics |
US3855018A (en) * | 1972-09-28 | 1974-12-17 | Allegheny Ludlum Ind Inc | Method for producing grain oriented silicon steel comprising copper |
AR208355A1 (en) * | 1975-02-13 | 1976-12-20 | Allegheny Ludlum Ind Inc | PROCEDURE FOR PRODUCING SILICONE ELECTROMAGNETIC STEEL |
GB2130241B (en) * | 1982-09-24 | 1986-01-15 | Nippon Steel Corp | Method for producing a grain-oriented electrical steel sheet having a high magnetic flux density |
JPS60197819A (en) * | 1984-03-22 | 1985-10-07 | Nippon Steel Corp | Production of thin grain-oriented electrical steel sheet having high magnetic flux density |
KR930004849B1 (en) * | 1991-07-12 | 1993-06-09 | 포항종합제철 주식회사 | Electrcal steel sheet having a good magnetic property and its making process |
DE4311151C1 (en) * | 1993-04-05 | 1994-07-28 | Thyssen Stahl Ag | Grain-orientated electro-steel sheets with good properties |
-
1995
- 1995-03-14 FR FR9502916A patent/FR2731713B1/en not_active Expired - Fee Related
-
1996
- 1996-03-08 AT AT96400486T patent/ATE206171T1/en not_active IP Right Cessation
- 1996-03-08 PT PT96400486T patent/PT732413E/en unknown
- 1996-03-08 WO PCT/FR1996/000364 patent/WO1996028576A1/en active IP Right Grant
- 1996-03-08 ES ES96400486T patent/ES2161988T3/en not_active Expired - Lifetime
- 1996-03-08 CZ CZ963684A patent/CZ284873B6/en not_active IP Right Cessation
- 1996-03-08 EP EP96400486A patent/EP0732413B1/en not_active Expired - Lifetime
- 1996-03-08 CN CN96190188A patent/CN1148411A/en active Pending
- 1996-03-08 DE DE69615429T patent/DE69615429T2/en not_active Expired - Lifetime
- 1996-03-08 JP JP8527325A patent/JPH10500454A/en active Pending
- 1996-03-08 BR BR9605937A patent/BR9605937A/en not_active Application Discontinuation
- 1996-03-08 PL PL96317155A patent/PL317155A1/en unknown
- 1996-11-11 KR KR1019960706379A patent/KR970702932A/en not_active Application Discontinuation
Also Published As
Publication number | Publication date |
---|---|
CZ368496A3 (en) | 1997-04-16 |
EP0732413A1 (en) | 1996-09-18 |
KR970702932A (en) | 1997-06-10 |
FR2731713A1 (en) | 1996-09-20 |
WO1996028576A1 (en) | 1996-09-19 |
PT732413E (en) | 2002-03-28 |
CZ284873B6 (en) | 1999-03-17 |
CN1148411A (en) | 1997-04-23 |
FR2731713B1 (en) | 1997-04-11 |
ES2161988T3 (en) | 2001-12-16 |
JPH10500454A (en) | 1998-01-13 |
DE69615429T2 (en) | 2002-06-20 |
EP0732413B1 (en) | 2001-09-26 |
PL317155A1 (en) | 1997-03-17 |
DE69615429D1 (en) | 2001-10-31 |
ATE206171T1 (en) | 2001-10-15 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
TC | Change of name | ||
FB36 | Technical and formal requirements: requirement - article 36 of industrial property law | ||
FA8 | Dismissal: dismissal - article 36, par. 1 of industrial property law |