EP0837147A3 - A method for manufacturing a stainless steel strip - Google Patents

A method for manufacturing a stainless steel strip Download PDF

Info

Publication number
EP0837147A3
EP0837147A3 EP97203013A EP97203013A EP0837147A3 EP 0837147 A3 EP0837147 A3 EP 0837147A3 EP 97203013 A EP97203013 A EP 97203013A EP 97203013 A EP97203013 A EP 97203013A EP 0837147 A3 EP0837147 A3 EP 0837147A3
Authority
EP
European Patent Office
Prior art keywords
strip
stainless steel
thickness
cast
manufacturing
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Withdrawn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
EP97203013A
Other languages
German (de)
French (fr)
Other versions
EP0837147A2 (en
Inventor
Sten Ljungars
Christer Herre
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.)
Outokumpu Stainless AB
Original Assignee
Avesta Sheffield AB
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 Avesta Sheffield AB filed Critical Avesta Sheffield AB
Publication of EP0837147A2 publication Critical patent/EP0837147A2/en
Publication of EP0837147A3 publication Critical patent/EP0837147A3/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Withdrawn legal-status Critical Current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
    • 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
    • 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
    • B21B1/28—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 cold-rolling, e.g. Steckel cold mill
    • 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
    • B21B1/46—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 metal immediately subsequent to continuous casting
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B37/00—Control devices or methods specially adapted for metal-rolling mills or the work produced thereby
    • B21B37/28—Control of flatness or profile during rolling of strip, sheets or plates
    • B21B37/38—Control of flatness or profile during rolling of strip, sheets or plates using roll bending
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B45/00—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
    • 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
    • C21D8/0205—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips of ferrous alloys
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B2261/00—Product parameters
    • B21B2261/20—Temperature
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B2265/00—Forming parameters
    • B21B2265/14—Reduction rate
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B2265/00—Forming parameters
    • B21B2265/18—Elongation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B41/00—Guiding, conveying, or accumulating easily-flexible work, e.g. wire, sheet metal bands, in loops or curves; Loop lifters
    • 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
    • C21D8/0221—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips characterised by the working steps
    • C21D8/0236—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
    • C21D8/02—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
    • C21D8/0247—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips characterised by the heat treatment
    • C21D8/0268—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips characterised by the heat treatment between cold rolling steps

Abstract

A method for manufacturing a stainless steel strip, particularly an austenitic stainless steel strip, with desired final thickness and a yield strength of at least 250 N/mm2, includes continuously casting a stainless steel, particularly an austenitic stainless steel, into a strip having a thickness of at least 1 mm and at maximum 10 mm, optionally hot rolling the cast strip, cooling said cast and optionally hot rolled strip to room temperature, coldrolling the cast and optionally hot rolled strip with at least a 10% thickness reduction to a thickness which is at least 2% and at most 20%, preferably at most 10%, greater than the intended final thickness of the finished product, annealing the thus cold-rolled strip at a temperature between 1,050°C and 1,250°C, and cold-working the strip after said annealing process so as to permanently elongate the strip and therewith reduce its thickness by 2-20%, preferably by 2-10%.
EP97203013A 1996-10-15 1997-10-01 A method for manufacturing a stainless steel strip Withdrawn EP0837147A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE9603764A SE508892C2 (en) 1996-10-15 1996-10-15 Process for making a stainless steel strip
SE9603764 1996-10-15

Publications (2)

Publication Number Publication Date
EP0837147A2 EP0837147A2 (en) 1998-04-22
EP0837147A3 true EP0837147A3 (en) 1998-12-09

Family

ID=20404249

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97203013A Withdrawn EP0837147A3 (en) 1996-10-15 1997-10-01 A method for manufacturing a stainless steel strip

Country Status (8)

Country Link
EP (1) EP0837147A3 (en)
JP (1) JPH10121133A (en)
KR (1) KR19980032838A (en)
CN (1) CN1182801A (en)
BR (1) BR9708117A (en)
CA (1) CA2218154A1 (en)
SE (1) SE508892C2 (en)
ZA (1) ZA979197B (en)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6546771B1 (en) 1998-12-18 2003-04-15 Avestapolarit Ab Method for manufacturing of strips and rolling mill line
ATE271937T1 (en) * 1998-12-18 2004-08-15 Outokumpu Stainless Ab METHOD FOR PRODUCING STAINLESS STEEL STRIPS AND INTEGRATED ROLLING LINE
AUPP811399A0 (en) * 1999-01-12 1999-02-04 Bhp Steel (Jla) Pty Limited Cold rolled steel
KR100498069B1 (en) * 2000-12-21 2005-07-01 주식회사 포스코 Method for producing high strength stainless steel in strip casting & in-line rolling apparatus
EP1979496A1 (en) * 2006-01-26 2008-10-15 ARVEDI, Giovanni Strip of hot rolled micro-alloyed steel for obtaining finished pieces by cold pressing and shearing
TW201006934A (en) * 2008-08-14 2010-02-16 Yieh United Steel Corp Method for manufacturing stainless steel ultra thin white coil
CN101845605B (en) * 2009-03-24 2013-01-02 宝山钢铁股份有限公司 Austenitic stainless steel plate with excellent strength at medium and low temperature and manufacturing method thereof
CN105080968B (en) * 2015-05-19 2017-10-27 浙江青山钢铁有限公司 A kind of continuous casting billet milling method of super-duplex stainless steel
TWI625172B (en) * 2016-09-19 2018-06-01 Composite cold rolling line
CN107030264B (en) * 2017-04-27 2019-04-26 酒泉钢铁(集团)有限责任公司 A kind of super austenitic stainless steel double roll strip casting rolling production process
FI128282B (en) * 2019-01-28 2020-02-28 Outokumpu Oy Method for manufacturing of stainless steel strips
CN109848212B (en) * 2019-03-13 2020-08-28 山西太钢不锈钢股份有限公司 Stainless steel strip and rolling method thereof

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3388011A (en) * 1965-10-08 1968-06-11 Atomic Energy Commission Usa Process for the production of high strength steels
EP0387786A2 (en) * 1989-03-14 1990-09-19 Nippon Steel Corporation Process for producing cold-rolled strip or sheet of austenitic stainless steel
WO1993019211A1 (en) * 1990-09-21 1993-09-30 Avesta Sheffield Aktiebolag Method for continuous recrystallization annealing of a steel strip
EP0664340A2 (en) * 1994-01-11 1995-07-26 J&L Specialty Steel, Inc. Continuous method for producing final gauge stainless steel product
EP0738781A1 (en) * 1995-04-21 1996-10-23 Avesta Sheffield Aktiebolag Process for producing strips of stainless steel

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3388011A (en) * 1965-10-08 1968-06-11 Atomic Energy Commission Usa Process for the production of high strength steels
EP0387786A2 (en) * 1989-03-14 1990-09-19 Nippon Steel Corporation Process for producing cold-rolled strip or sheet of austenitic stainless steel
WO1993019211A1 (en) * 1990-09-21 1993-09-30 Avesta Sheffield Aktiebolag Method for continuous recrystallization annealing of a steel strip
EP0664340A2 (en) * 1994-01-11 1995-07-26 J&L Specialty Steel, Inc. Continuous method for producing final gauge stainless steel product
EP0738781A1 (en) * 1995-04-21 1996-10-23 Avesta Sheffield Aktiebolag Process for producing strips of stainless steel

Also Published As

Publication number Publication date
SE9603764L (en) 1998-04-16
JPH10121133A (en) 1998-05-12
BR9708117A (en) 1999-09-14
SE9603764D0 (en) 1996-10-15
KR19980032838A (en) 1998-07-25
MX9707907A (en) 1998-08-30
EP0837147A2 (en) 1998-04-22
CN1182801A (en) 1998-05-27
SE508892C2 (en) 1998-11-16
CA2218154A1 (en) 1998-04-15
ZA979197B (en) 1998-05-11

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