AU2002231713A1 - Process for the production of grain oriented electrical steel strips - Google Patents
Process for the production of grain oriented electrical steel stripsInfo
- Publication number
- AU2002231713A1 AU2002231713A1 AU2002231713A AU3171302A AU2002231713A1 AU 2002231713 A1 AU2002231713 A1 AU 2002231713A1 AU 2002231713 A AU2002231713 A AU 2002231713A AU 3171302 A AU3171302 A AU 3171302A AU 2002231713 A1 AU2002231713 A1 AU 2002231713A1
- Authority
- AU
- Australia
- Prior art keywords
- sup
- strip
- production
- electrical steel
- steel strips
- 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.)
- Abandoned
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
- 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
- C21D8/1205—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
Process for the production of oriented grain electrical steel strips, in which a silicon steel, comprising at least 30 ppm of S, is directly cast as strip 1.5-4.5 mm thick and cold rolled to a final thickness of between 1.0 and 0.15 mm; characterised by the following staged: Cooling and deformation of the solidified strip to obtain a second phases distribution in which 600 cm<SUP>-1</SUP><IZ<1500 CM<SUP>-1 </SUP>and Iy=1.9 Fv/r (cm<SUP>-1</SUP>), Fv being the volume fraction of second phases stable at temperatures of less than 800° C., and r being the precipitates mean radius, in cm; Hot rolling between solidification and coiling of the strip at a temperature of not less than 750° C., with a reduction ratio of between 15 and 60%; Cold rolling with reduction ratio of 60-92%; Cold rolled strip annealing at 750-1100° C., with increase of the nitrogen content of at least 30 ppm with respect to the initial composition at the strip core, in nitriding atmosphere.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT2000RM000672A IT1316026B1 (en) | 2000-12-18 | 2000-12-18 | PROCEDURE FOR THE MANUFACTURE OF ORIENTED GRAIN SHEETS. |
ITRM2000A000672 | 2000-12-18 | ||
PCT/EP2001/014879 WO2002050314A2 (en) | 2000-12-18 | 2001-12-17 | Process for the production of grain oriented electrical steel strips |
Publications (1)
Publication Number | Publication Date |
---|---|
AU2002231713A1 true AU2002231713A1 (en) | 2002-07-01 |
Family
ID=11455060
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
AU2002231713A Abandoned AU2002231713A1 (en) | 2000-12-18 | 2001-12-17 | Process for the production of grain oriented electrical steel strips |
Country Status (16)
Country | Link |
---|---|
US (1) | US6893510B2 (en) |
EP (1) | EP1356127B9 (en) |
JP (1) | JP2004516381A (en) |
KR (1) | KR100830280B1 (en) |
CN (1) | CN1242077C (en) |
AT (1) | ATE294877T1 (en) |
AU (1) | AU2002231713A1 (en) |
BR (1) | BR0116245B1 (en) |
CZ (1) | CZ20031687A3 (en) |
DE (1) | DE60110643T2 (en) |
ES (1) | ES2241895T3 (en) |
IT (1) | IT1316026B1 (en) |
PL (1) | PL199162B1 (en) |
RU (1) | RU2285730C2 (en) |
SK (1) | SK286629B6 (en) |
WO (1) | WO2002050314A2 (en) |
Families Citing this family (19)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
IT1316029B1 (en) * | 2000-12-18 | 2003-03-26 | Acciai Speciali Terni Spa | ORIENTED GRAIN MAGNETIC STEEL PRODUCTION PROCESS. |
DE102005052774A1 (en) * | 2004-12-21 | 2006-06-29 | Salzgitter Flachstahl Gmbh | Method of producing hot strips of lightweight steel |
US7736444B1 (en) * | 2006-04-19 | 2010-06-15 | Silicon Steel Technology, Inc. | Method and system for manufacturing electrical silicon steel |
KR100797997B1 (en) * | 2006-12-27 | 2008-01-28 | 주식회사 포스코 | Method for manufacturing grain-oriented electrical steel sheets with excellent magnetic property and high productivity |
KR100817168B1 (en) * | 2006-12-27 | 2008-03-27 | 주식회사 포스코 | Method for manufacturing the grain-oriented electrical steel sheets with excellent magnetic properties |
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. |
KR101340223B1 (en) * | 2008-12-16 | 2013-12-10 | 신닛테츠스미킨 카부시키카이샤 | Oriented electrical steel sheet, and method for producing same |
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 (en) * | 2010-02-24 | 2011-12-21 | Jfeスチール株式会社 | Method for producing grain-oriented electrical steel sheet |
DE102011107304A1 (en) * | 2011-07-06 | 2013-01-10 | Thyssenkrupp Electrical Steel Gmbh | Method for producing a grain-oriented electrical steel flat product intended for electrotechnical applications |
DE102011054004A1 (en) * | 2011-09-28 | 2013-03-28 | Thyssenkrupp Electrical Steel Gmbh | Method for producing a grain-oriented electrical tape or sheet intended for electrical applications |
CN102517592A (en) * | 2011-12-13 | 2012-06-27 | 武汉钢铁(集团)公司 | High magnetic induction grain-oriented silicon steel stripe nitriding treatment method |
US9748028B2 (en) * | 2012-07-26 | 2017-08-29 | Jfe Steel Corporation | Method for producing grain-oriented electrical steel sheet |
KR101949626B1 (en) * | 2012-12-28 | 2019-02-18 | 제이에프이 스틸 가부시키가이샤 | Production method for grain-oriented electrical steel sheet and primary recrystallized steel sheet for production of grain-oriented electrical steel sheet |
KR101633255B1 (en) | 2014-12-18 | 2016-07-08 | 주식회사 포스코 | Grain-orientied electrical shteel sheet and method for manufacturing the same |
CN107630133B (en) * | 2016-07-18 | 2019-06-28 | 鞍钢股份有限公司 | Production method of high-grade electrical steel product with excellent frequency conversion characteristic |
KR101947026B1 (en) * | 2016-12-22 | 2019-02-12 | 주식회사 포스코 | Grain oriented electrical steel sheet and method for manufacturing the same |
KR102012319B1 (en) | 2017-12-26 | 2019-08-20 | 주식회사 포스코 | Oriented electrical steel sheet and manufacturing method of the same |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE68916980T2 (en) | 1988-02-03 | 1994-11-17 | Nippon Steel Corp | Process for producing grain-oriented electrical steel sheets with high flux density. |
DE69030781T3 (en) * | 1989-03-30 | 2001-05-23 | Nippon Steel Corp | Process for the production of grain-oriented electrical steel sheets by means of rapid quenching and solidification |
IT1230313B (en) * | 1989-07-07 | 1991-10-18 | Somova Spa | INHALER FOR CAPSULES MEDICATIONS. |
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 |
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 |
DE69923102T3 (en) * | 1998-03-30 | 2015-10-15 | Nippon Steel & Sumitomo Metal Corporation | Process for producing a grain-oriented electrical steel sheet having excellent magnetic properties |
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/en active
-
2001
- 2001-12-17 PL PL362277A patent/PL199162B1/en unknown
- 2001-12-17 DE DE60110643T patent/DE60110643T2/en not_active Expired - Lifetime
- 2001-12-17 JP JP2002551193A patent/JP2004516381A/en active Pending
- 2001-12-17 US US10/450,968 patent/US6893510B2/en not_active Expired - Lifetime
- 2001-12-17 AU AU2002231713A patent/AU2002231713A1/en not_active Abandoned
- 2001-12-17 CZ CZ20031687A patent/CZ20031687A3/en unknown
- 2001-12-17 RU RU2003122339/02A patent/RU2285730C2/en not_active IP Right Cessation
- 2001-12-17 KR KR1020037008095A patent/KR100830280B1/en active IP Right Grant
- 2001-12-17 BR BRPI0116245-4A patent/BR0116245B1/en not_active IP Right Cessation
- 2001-12-17 SK SK757-2003A patent/SK286629B6/en not_active IP Right Cessation
- 2001-12-17 CN CNB018208371A patent/CN1242077C/en not_active Expired - Fee Related
- 2001-12-17 ES ES01991857T patent/ES2241895T3/en not_active Expired - Lifetime
- 2001-12-17 EP EP01991857A patent/EP1356127B9/en not_active Expired - Lifetime
- 2001-12-17 WO PCT/EP2001/014879 patent/WO2002050314A2/en active IP Right Grant
- 2001-12-17 AT AT01991857T patent/ATE294877T1/en active
Also Published As
Publication number | Publication date |
---|---|
EP1356127B1 (en) | 2005-05-04 |
BR0116245B1 (en) | 2010-06-01 |
SK286629B6 (en) | 2009-02-05 |
PL199162B1 (en) | 2008-08-29 |
JP2004516381A (en) | 2004-06-03 |
KR20030076991A (en) | 2003-09-29 |
PL362277A1 (en) | 2004-10-18 |
RU2003122339A (en) | 2005-01-10 |
ITRM20000672A1 (en) | 2002-06-18 |
IT1316026B1 (en) | 2003-03-26 |
CN1481444A (en) | 2004-03-10 |
BR0116245A (en) | 2004-01-13 |
KR100830280B1 (en) | 2008-05-16 |
US20040069377A1 (en) | 2004-04-15 |
CZ20031687A3 (en) | 2004-02-18 |
RU2285730C2 (en) | 2006-10-20 |
EP1356127A2 (en) | 2003-10-29 |
DE60110643D1 (en) | 2005-06-09 |
CN1242077C (en) | 2006-02-15 |
ATE294877T1 (en) | 2005-05-15 |
DE60110643T2 (en) | 2006-02-02 |
ES2241895T3 (en) | 2005-11-01 |
WO2002050314A3 (en) | 2002-08-22 |
ITRM20000672A0 (en) | 2000-12-18 |
EP1356127B9 (en) | 2006-01-11 |
WO2002050314A2 (en) | 2002-06-27 |
SK7572003A3 (en) | 2003-10-07 |
US6893510B2 (en) | 2005-05-17 |
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