PT1662010E - Magnetic hot rolled steel strip particularly suited for the production of electromagnetic lamination packs - Google Patents

Magnetic hot rolled steel strip particularly suited for the production of electromagnetic lamination packs Download PDF

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Publication number
PT1662010E
PT1662010E PT04425877T PT04425877T PT1662010E PT 1662010 E PT1662010 E PT 1662010E PT 04425877 T PT04425877 T PT 04425877T PT 04425877 T PT04425877 T PT 04425877T PT 1662010 E PT1662010 E PT 1662010E
Authority
PT
Portugal
Prior art keywords
steel strip
production
hot rolled
silicon
rolled steel
Prior art date
Application number
PT04425877T
Other languages
Portuguese (pt)
Inventor
Giovanni Arvedi
Original Assignee
Giovanni Arvedi
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=34932906&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=PT1662010(E) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Giovanni Arvedi filed Critical Giovanni Arvedi
Publication of PT1662010E publication Critical patent/PT1662010E/en

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
    • C21D8/1216—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
    • C21D8/1238—Flattening; Dressing; Flexing
    • 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
    • C21D8/1216—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
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/04—Ferrous alloys, e.g. steel alloys containing manganese
    • 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
    • C21D2211/005—Ferrite
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F1/00—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties
    • H01F1/01—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials
    • H01F1/03—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity
    • H01F1/12—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials
    • H01F1/14—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials metals or alloys
    • H01F1/147—Alloys characterised by their composition
    • H01F1/14766—Fe-Si based alloys
    • H01F1/14791—Fe-Si-Al based alloys, e.g. Sendust

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Organic Chemistry (AREA)
  • Metallurgy (AREA)
  • Materials Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Thermal Sciences (AREA)
  • Electromagnetism (AREA)
  • Manufacturing Of Steel Electrode Plates (AREA)
  • Soft Magnetic Materials (AREA)
  • Hard Magnetic Materials (AREA)

Abstract

A hot rolled low carbon steel strip with a reduced content of silicon and thickness comprised between 0.65 and 1.5 mm can be used in a particularly advantageous way for the production of multilayer packs of cold cut lamination and all those products composed of a number of overlying steel sheets which are required to have a substantial parallelism, planarity and no burrs, providing a valid alternative solution to the cold rolled, non-oriented grain silicon steel strip which is usually employed to this purpose. Said steel strip is characterized by a silicon content < 0.03 %, a thickness preferably between about 0.65 and 1 mm, reduced tolerances of ± 0.05 mm, a parallelism rate < 0.02 mm and a fine and uniform grain structure with the 70% of the ferritic grains comprised between the grades 9 and 12 of the ASTM E 112 standard.
PT04425877T 2004-11-24 2004-11-24 Magnetic hot rolled steel strip particularly suited for the production of electromagnetic lamination packs PT1662010E (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP04425877A EP1662010B1 (en) 2004-11-24 2004-11-24 Magnetic hot rolled steel strip particularly suited for the production of electromagnetic lamination packs

Publications (1)

Publication Number Publication Date
PT1662010E true PT1662010E (en) 2009-03-03

Family

ID=34932906

Family Applications (1)

Application Number Title Priority Date Filing Date
PT04425877T PT1662010E (en) 2004-11-24 2004-11-24 Magnetic hot rolled steel strip particularly suited for the production of electromagnetic lamination packs

Country Status (10)

Country Link
EP (1) EP1662010B1 (en)
AT (1) ATE420214T1 (en)
DE (1) DE602004018942D1 (en)
DK (1) DK1662010T3 (en)
ES (1) ES2316949T3 (en)
HR (1) HRP20090096T3 (en)
PL (1) PL1662010T3 (en)
PT (1) PT1662010E (en)
RS (1) RS51272B (en)
SI (1) SI1662010T1 (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2636651A1 (en) * 2006-01-26 2007-08-02 Giovanni Arvedi Hot steel strip particularly suited for the production of electromagnetic lamination packs
AU2006336818A1 (en) * 2006-01-26 2007-08-02 Giovanni Arvedi Hot rolled dual phase steel strip having features of a cold rolled strip
DE102008029581A1 (en) 2007-07-21 2009-01-22 Sms Demag Ag Method and apparatus for making strips of silicon or multi-phase steel
ITRM20110528A1 (en) 2011-10-05 2013-04-06 Ct Sviluppo Materiali Spa PROCEDURE FOR THE PRODUCTION OF MAGNETIC SHEET WITH ORIENTED GRAIN AND HIGH DEGREE OF COLD REDUCTION.
CN103028599B (en) * 2012-05-25 2014-11-05 宝钢集团新疆八一钢铁有限公司 Production method for hot rolled ribbed steel bar steel wire rod
JP6194866B2 (en) * 2014-08-27 2017-09-13 Ｊｆｅスチール株式会社 Non-oriented electrical steel sheet and manufacturing method thereof
CN107962075B (en) * 2017-11-27 2019-07-09 武汉钢铁有限公司 The cold rolling process of high grade non-oriented silicon steel hot rolling acid-cleaning not cutting edge
CN109097535B (en) * 2018-09-27 2021-11-05 长春工业大学 Method for preparing high-strength non-oriented silicon steel based on accumulative roll welding

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3366843B2 (en) * 1997-09-19 2003-01-14 川崎製鉄株式会社 Hot-rolled steel sheet for processing having ultrafine grains and method for producing the same
JP3514158B2 (en) * 1999-03-19 2004-03-31 Ｊｆｅスチール株式会社 Manufacturing method of high tensile strength hot rolled steel sheet with excellent stretch flangeability and material stability
JP2001073096A (en) * 1999-09-01 2001-03-21 Sumitomo Metal Ind Ltd Nonoriented silicon steel sheet for power steering motor, and its manufacture
EP1170390A4 (en) * 1999-09-28 2005-02-23 Jfe Steel Corp Hot-rolled steel sheet having high tensile strength and method for production thereof
JP2001192788A (en) * 2000-01-12 2001-07-17 Sumitomo Metal Ind Ltd Nonoriented silicon steel sheet excellent in workability, and its manufacturing method
EP1411138A4 (en) 2001-06-28 2005-01-12 Jfe Steel Corp Nonoriented electromagnetic steel sheet
JP4718749B2 (en) 2002-08-06 2011-07-06 Ｊｆｅスチール株式会社 High magnetic flux density non-oriented electrical steel sheet for rotating machine and member for rotating machine
ITMI20021996A1 (en) 2002-09-19 2004-03-20 Giovanni Arvedi PROCESS AND PRODUCTION LINE FOR THE MANUFACTURE OF ULTRA-THIN HOT TAPE BASED ON THE TECHNOLOGY OF THE THIN SHEET

Also Published As

Publication number Publication date
SI1662010T1 (en) 2009-04-30
EP1662010B1 (en) 2009-01-07
HRP20090096T3 (en) 2009-05-31
EP1662010A1 (en) 2006-05-31
PL1662010T3 (en) 2009-06-30
RS51272B (en) 2010-12-31
DE602004018942D1 (en) 2009-02-26
DK1662010T3 (en) 2009-04-27
ES2316949T3 (en) 2009-04-16
ATE420214T1 (en) 2009-01-15

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