EP0875586A4 - - Google Patents

Info

Publication number
EP0875586A4
EP0875586A4 EP96941184A EP96941184A EP0875586A4 EP 0875586 A4 EP0875586 A4 EP 0875586A4 EP 96941184 A EP96941184 A EP 96941184A EP 96941184 A EP96941184 A EP 96941184A EP 0875586 A4 EP0875586 A4 EP 0875586A4
Authority
EP
European Patent Office
Prior art keywords
rolling
sheet
finish
hot
annealing
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.)
Withdrawn
Application number
EP96941184A
Other languages
French (fr)
Other versions
EP0875586A1 (en
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
Priority claimed from JP21809696A external-priority patent/JP4191806B2/en
Priority claimed from JP8321886A external-priority patent/JPH10102147A/en
Application filed filed Critical
Publication of EP0875586A4 publication Critical patent/EP0875586A4/xx
Publication of EP0875586A1 publication Critical patent/EP0875586A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B1/00—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
    • B21B1/22—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling plates, strips, bands or sheets of indefinite length
    • B21B1/24—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling plates, strips, bands or sheets of indefinite length in a continuous or semi-continuous process
    • B21B1/26—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling plates, strips, bands or sheets of indefinite length in a continuous or semi-continuous process by hot-rolling, e.g. Steckel hot mill
    • 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
    • C21D8/1261—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
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B15/00—Arrangements for performing additional metal-working operations specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
    • B21B15/0085—Joining ends of material to continuous strip, bar or sheet
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B1/00—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
    • B21B1/22—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling plates, strips, bands or sheets of indefinite length
    • B21B2001/228—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling plates, strips, bands or sheets of indefinite length skin pass rolling or temper rolling
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B2265/00—Forming parameters
    • B21B2265/20—Slip
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B27/00—Rolls, roll alloys or roll fabrication; Lubricating, cooling or heating rolls while in use
    • B21B27/06—Lubricating, cooling or heating rolls
    • B21B27/10—Lubricating, cooling or heating rolls externally
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B3/00—Rolling materials of special alloys so far as the composition of the alloy requires or permits special rolling methods or sequences ; Rolling of aluminium, copper, zinc or other non-ferrous metals
    • B21B3/02—Rolling special iron alloys, e.g. stainless steel

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)

Abstract

A process for producing non-oriented electrical steel sheets, by hot rolling a slab comprising on the weight basis 1.00 % < Si ≤ 7.0 %, 0.10 % ≤ Mn ≤ 1.50 %, C ≤ 0.0050 %, N ≤ 0.0050 %, and S ≤ 0.0050 % with the balance consisting of Fe and unavoidable impurities to prepare a hot rolled sheet, optionally annealing the hot rolled sheet, either subjecting the sheet to cold rolling once or at least twice with intermediate annealing conducted between the cold rolling steps and then finish annealing, or subjecting the sheet to cold rolling once or at least twice with intermediate annealing conducted between the cold rolling steps and then finish annealing followed by skin pass rolling, characterized in that the finishing in the step of finish hot rolling is performed under either an average coefficient of friction between the hot rolling roll and the steel sheet of not more than 0.25, or an average coefficient of friction between the hot rolling roll and the steel sheet of not more than 0.25 and a maximum strain rate in at least one pass of not less than 150 s-1. At the time of rough rolling, a sheet bar may be joined to continuously conduct finish rolling.
EP96941184A 1995-12-05 1996-12-05 Process for producing non-oriented electrical steel sheet having high magnetic flux density and low iron loss Withdrawn EP0875586A1 (en)

Applications Claiming Priority (11)

Application Number Priority Date Filing Date Title
JP31687095 1995-12-05
JP316870/95 1995-12-05
JP345044/95 1995-12-08
JP34504495 1995-12-08
JP218096/96 1996-08-01
JP21809696A JP4191806B2 (en) 1995-12-08 1996-08-01 Method for producing non-oriented electrical steel sheet
JP20606496 1996-08-05
JP206064/96 1996-08-05
JP8321886A JPH10102147A (en) 1995-12-05 1996-12-02 Production of nonoriented silicon steel sheet with high magnetic flux density and low iron loss
JP321886/96 1996-12-02
PCT/JP1996/003570 WO1997020956A1 (en) 1995-12-05 1996-12-05 Process for producing non-oriented electrical steel sheet having high magnetic flux density and low iron loss

Publications (2)

Publication Number Publication Date
EP0875586A4 true EP0875586A4 (en) 1998-11-04
EP0875586A1 EP0875586A1 (en) 1998-11-04

Family

ID=27529394

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96941184A Withdrawn EP0875586A1 (en) 1995-12-05 1996-12-05 Process for producing non-oriented electrical steel sheet having high magnetic flux density and low iron loss

Country Status (5)

Country Link
EP (1) EP0875586A1 (en)
KR (1) KR19990071916A (en)
CN (1) CN1203635A (en)
AU (1) AU700333B2 (en)
WO (1) WO1997020956A1 (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7922834B2 (en) 2005-07-07 2011-04-12 Sumitomo Metal Industries, Ltd. Non-oriented electrical steel sheet and production process thereof
JP5974671B2 (en) 2011-11-09 2016-08-23 Ｊｆｅスチール株式会社 Ultra-thin electrical steel sheet
CN105779728A (en) * 2014-12-23 2016-07-20 鞍钢股份有限公司 Hot rolling method for non-oriented electrical steel thin strip
CN105779879A (en) * 2014-12-23 2016-07-20 鞍钢股份有限公司 Production method of cold-rolled non-oriented electrical steel thin strip
CN109477186B (en) * 2016-07-29 2020-11-27 杰富意钢铁株式会社 Hot-rolled steel sheet for grain-oriented electrical steel sheet, method for producing same, and method for producing grain-oriented electrical steel sheet
JP6954464B2 (en) * 2019-04-22 2021-10-27 Ｊｆｅスチール株式会社 Manufacturing method of non-oriented electrical steel sheet
CN116555532B (en) * 2023-03-31 2024-04-09 宝镁特(上海)智能工程有限公司 High-precision annealing method for thin silicon steel material

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5476422A (en) * 1977-11-30 1979-06-19 Nippon Steel Corp Manufacture of non-oriented electrical sheet with superior magnetism by self annealing of hot rolled sheet
JPS6254023A (en) * 1985-08-31 1987-03-09 Nippon Steel Corp Manufacture of high-grade nonoriented electrical steel sheet
JPH01306524A (en) * 1988-06-04 1989-12-11 Kobe Steel Ltd Production of non-oriented electrical sheet having high magnetic flux density
JPH0723509B2 (en) * 1988-10-13 1995-03-15 新日本製鐵株式会社 Manufacturing method of non-oriented electrical steel sheet having excellent iron loss characteristics
JP2790730B2 (en) * 1990-12-26 1998-08-27 川崎製鉄株式会社 Manufacturing method of high carbon steel sheet with excellent material uniformity
JP3375998B2 (en) * 1993-01-26 2003-02-10 川崎製鉄株式会社 Manufacturing method of non-oriented electrical steel sheet

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
No further relevant documents disclosed *
See also references of WO9720956A1 *

Also Published As

Publication number Publication date
KR19990071916A (en) 1999-09-27
CN1203635A (en) 1998-12-30
EP0875586A1 (en) 1998-11-04
WO1997020956A1 (en) 1997-06-12
AU1436397A (en) 1997-06-27
AU700333B2 (en) 1998-12-24

Similar Documents

Publication Publication Date Title
CA2145729A1 (en) Method of Producing Ferritic Stainless Steel Strip with Small Intra-Face Anisotropy
EP0400549A3 (en) Process for producing grainoriented electrical steel sheet having superior magnetic and surface film characteristics
EP0826436A4 (en) Ultra-thin sheet steel and method for manufacturing the same
CA2097900A1 (en) High-strength cold-rolled steel sheet excelling in deep drawability and method of producing the same
KR100771253B1 (en) Method for producing non grain-oriented electric sheets
WO2000065103A3 (en) Method of producing non-grain-oriented electrical sheet
CA2049378A1 (en) High strength steel sheet adapted for press forming and method of producing the same
CA2076284A1 (en) Cold-rolled high-tension steel sheet having superior deep drawability
EP0326912A3 (en) Process for production of grain oriented electrical steel sheet having high flux density
EP0875586A4 (en)
EP0390142A3 (en) Process for producing grain-oriented electrical steel sheet having high magnetic flux density
CA2050976A1 (en) Method of manufacturing an oriented silicon steel sheet having improved magnetic characteristics
MX9800130A (en) Method for making aluminum alloy can stock.
TW340875B (en) Process for producing a steel sheet of strip for making a can
CA2076483A1 (en) Method of producing grain oriented silicon steel sheet having low iron loss
CA2068199A1 (en) Niobium carbide strengthened steel for porcelain enameling
CA2081496A1 (en) Method of manufacturing a cold rolled steel sheet exhibiting an excellent resistance to cold-work embrittlement and a small planar anisotropy
JP4258028B2 (en) Method for producing non-oriented electrical steel sheet
JPS6483307A (en) Pretreatment of stainless steel strip for cold rolling
JPS64228A (en) Production of non-oriented electrical steel sheet having high tensile strength
JPS5941803B2 (en) Cold rolling method for thin steel strip for drawing
Kitmaura et al. Method of Producing Directional Silicon Steel Sheet Having Excellent Magnetic Characteristics, and Continuous Intermediate Annealing Equipment
JPS6425921A (en) Manufacture of cold-rolled steel sheet combining high ductility with high strength
JPS6411924A (en) Manufacture of cold-rolled steel sheet for deep drawing having baking hardenability
KR970001567A (en) Rough steel manufacturing method for binding steel coil products with excellent toughness

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 19980703

A4 Supplementary search report drawn up and despatched
AK Designated contracting states

Kind code of ref document: A4

Designated state(s): DE FR GB IT SE

Kind code of ref document: A1

Designated state(s): DE FR GB IT SE

17Q First examination report despatched

Effective date: 19990927

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 20000208