WO2002004145A3 - Method and apparatus for the direct production of scale-free thin metal strip - Google Patents

Method and apparatus for the direct production of scale-free thin metal strip Download PDF

Info

Publication number
WO2002004145A3
WO2002004145A3 PCT/US2001/021295 US0121295W WO0204145A3 WO 2002004145 A3 WO2002004145 A3 WO 2002004145A3 US 0121295 W US0121295 W US 0121295W WO 0204145 A3 WO0204145 A3 WO 0204145A3
Authority
WO
WIPO (PCT)
Prior art keywords
strip
scale
thin metal
metal strip
direct production
Prior art date
Application number
PCT/US2001/021295
Other languages
French (fr)
Other versions
WO2002004145A2 (en
Inventor
Stephen L Feldbauer
Original Assignee
Danieli Technology Inc
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 Danieli Technology Inc filed Critical Danieli Technology Inc
Priority to AU2001273193A priority Critical patent/AU2001273193A1/en
Priority to DE60136184T priority patent/DE60136184D1/en
Priority to EP01952442A priority patent/EP1301639B1/en
Publication of WO2002004145A2 publication Critical patent/WO2002004145A2/en
Publication of WO2002004145A3 publication Critical patent/WO2002004145A3/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
    • B22D11/12—Accessories for subsequent treating or working cast stock in situ
    • B22D11/124—Accessories for subsequent treating or working cast stock in situ for cooling
    • 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
    • C21D8/021—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips involving a particular fabrication or treatment of ingot or slab
    • C21D8/0215—Rapid solidification; Thin strip casting
    • 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
    • B21B1/227—Surface roughening or texturing
    • 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
    • B21B1/463—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 in a continuous process, i.e. the cast not being cut before rolling
    • 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
    • B21B45/004—Heating the product
    • B21B2045/006—Heating the product in vacuum or in inert atmosphere
    • 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
    • B21B45/02—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 for lubricating, cooling, or cleaning
    • B21B45/0203—Cooling
    • B21B45/0209—Cooling devices, e.g. using gaseous coolants
    • B21B45/0215—Cooling devices, e.g. using gaseous coolants using liquid coolants, e.g. for sections, for tubes
    • B21B45/0218—Cooling devices, e.g. using gaseous coolants using liquid coolants, e.g. for sections, for tubes for strips, sheets, or plates
    • 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
    • B21B45/04—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 for de-scaling, e.g. by brushing
    • B21B45/06—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 for de-scaling, e.g. by brushing of strip material
    • 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
    • C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
    • C21D1/74—Methods of treatment in inert gas, controlled atmosphere, vacuum or pulverulent material
    • 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
    • C21D8/0226—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
    • C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
    • C21D9/52—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for wires; for strips ; for rods of unlimited length
    • C21D9/54—Furnaces for treating strips or wire
    • C21D9/68—Furnace coilers; Hot coilers

Abstract

A method and apparatus for the direct production, from molten metal, of scale-free thin metal strip. Hot thin metal strip exiting a continuous caster system is directed to a reducing chamber wherein a reducing gas reduces strip surface oxides while the cast metal strip is at an elevated temperature from retained heat from the molten metal. A cooling unit following the reducing chamber is used to cool the strip to a temperature below about 150 °C prior to exposing the strip to an oxidizing atmosphere. In various embodiments of the invention, strip thickness is reduced with use of hot and cold rolling mills and the scale-free surface of the strip is coated with protective coatings.
PCT/US2001/021295 2000-07-12 2001-07-05 Method and apparatus for the direct production of scale-free thin metal strip WO2002004145A2 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
AU2001273193A AU2001273193A1 (en) 2000-07-12 2001-07-05 Method and apparatus for the direct production of scale-free thin metal strip
DE60136184T DE60136184D1 (en) 2000-07-12 2001-07-05 METHOD AND DEVICE FOR THE DIRECT MANUFACTURE OF ZUNDER-FREE DUNNBANDS
EP01952442A EP1301639B1 (en) 2000-07-12 2001-07-05 Method and apparatus for the direct production of scale-free thin metal strip

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US09/614,979 US6622778B1 (en) 2000-07-12 2000-07-12 Method for the direct production of scale-free thin metal strip
US09/614,979 2000-07-12

Publications (2)

Publication Number Publication Date
WO2002004145A2 WO2002004145A2 (en) 2002-01-17
WO2002004145A3 true WO2002004145A3 (en) 2002-05-30

Family

ID=24463495

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2001/021295 WO2002004145A2 (en) 2000-07-12 2001-07-05 Method and apparatus for the direct production of scale-free thin metal strip

Country Status (7)

Country Link
US (2) US6622778B1 (en)
EP (1) EP1301639B1 (en)
AT (1) ATE411403T1 (en)
AU (1) AU2001273193A1 (en)
DE (1) DE60136184D1 (en)
ES (1) ES2315292T3 (en)
WO (1) WO2002004145A2 (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102009018683A1 (en) * 2009-04-23 2010-10-28 Sms Siemag Ag Method and device for continuous casting of a slab
EP2687611A1 (en) 2012-07-17 2014-01-22 Linde Aktiengesellschaft Method and apparatus for controlling surface porosity of metal materials
CN103357656B (en) * 2013-07-08 2015-02-04 济钢集团有限公司 Manufacturing technology of cold rolling ultrathin strip steel with large roller diameter and high screw-down rate
CN105220101B (en) * 2014-05-30 2017-12-26 宝山钢铁股份有限公司 The method for exempting from pickling hot dip sheet band product is directly produced by molten steel
CN105132666A (en) * 2014-05-30 2015-12-09 宝山钢铁股份有限公司 Pickling-free continuous annealing furnace reducing gas recycle use system and use method thereof
WO2015180462A1 (en) * 2014-05-30 2015-12-03 宝山钢铁股份有限公司 Method for directly producing pickling-free hot-plated sheet strip product from molten steel
CN109571036B (en) * 2019-01-22 2021-11-26 上海宝钢新材料技术有限公司 Automatic compensation shearing method based on variable thickness plate arbitrary inflection point identification

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1990000100A1 (en) * 1988-06-30 1990-01-11 Sundwiger Eisenhütte Maschinenfabrik Grah & Co. Process and installation for manufacturing a metal strip having a thickness less than or equal to 10 mm
WO1997001401A1 (en) * 1995-06-29 1997-01-16 Hoogovens Staal B.V. Plant for the manufacture of steel strip
EP0776984A1 (en) * 1995-05-08 1997-06-04 Nippon Steel Corporation Equipment for continuously manufacturing metal coils and metal coil manufacturing method
EP0780177A2 (en) * 1995-12-22 1997-06-25 Ishikawajima-Harima Heavy Industries Co., Ltd. Twin roll continuous caster
WO2000012233A1 (en) * 1998-08-31 2000-03-09 Danieli Technology, Inc. Method for continuous removal of oxides from metal

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2625495A (en) * 1948-06-04 1953-01-13 Surface Combustion Corp High-temperature cleaning of ferrous metal
US3623532A (en) * 1969-03-20 1971-11-30 Southwire Co Continuous pickling of cast rod
BE815643A (en) * 1973-06-07 1974-11-28 DRY PICKLING PROCESS
FR2429056A1 (en) * 1978-06-19 1980-01-18 Tournus Manuf Metallurg PROCESS FOR PRODUCING COMPOSITE STRIPS BY CONTINUOUS CASTING
NL8802892A (en) * 1988-11-24 1990-06-18 Hoogovens Groep Bv METHOD FOR MANUFACTURING DEFORMING STEEL AND STRAP MADE THEREOF
US5092393A (en) * 1989-03-14 1992-03-03 Nippon Steel Corporation Process for producing cold-rolled strips and sheets of austenitic stainless steel
IT1244295B (en) * 1990-07-09 1994-07-08 Giovanni Arvedi PROCESS AND PLANT FOR THE OBTAINING OF WRAPPED STEEL BELTS, WITH CHARACTERISTICS OF COLD ROLLED PRODUCTS OBTAINED DIRECTLY IN HOT ROLLING LINE
US5476725A (en) * 1991-03-18 1995-12-19 Aluminum Company Of America Clad metallurgical products and methods of manufacture
JP3709003B2 (en) * 1996-01-26 2005-10-19 新日本製鐵株式会社 Thin plate continuous casting method
WO2000003815A1 (en) * 1998-07-14 2000-01-27 Ut-Battelle, Llc Continuous reduction of mill scale on hot rolled strip steel

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1990000100A1 (en) * 1988-06-30 1990-01-11 Sundwiger Eisenhütte Maschinenfabrik Grah & Co. Process and installation for manufacturing a metal strip having a thickness less than or equal to 10 mm
EP0776984A1 (en) * 1995-05-08 1997-06-04 Nippon Steel Corporation Equipment for continuously manufacturing metal coils and metal coil manufacturing method
WO1997001401A1 (en) * 1995-06-29 1997-01-16 Hoogovens Staal B.V. Plant for the manufacture of steel strip
EP0780177A2 (en) * 1995-12-22 1997-06-25 Ishikawajima-Harima Heavy Industries Co., Ltd. Twin roll continuous caster
US5816311A (en) * 1995-12-22 1998-10-06 Ishikawajima-Harima Heavy Industries Company Limited Twin roll continuous caster
WO2000012233A1 (en) * 1998-08-31 2000-03-09 Danieli Technology, Inc. Method for continuous removal of oxides from metal

Also Published As

Publication number Publication date
EP1301639B1 (en) 2008-10-15
US6588491B2 (en) 2003-07-08
WO2002004145A2 (en) 2002-01-17
DE60136184D1 (en) 2008-11-27
ES2315292T3 (en) 2009-04-01
ATE411403T1 (en) 2008-10-15
AU2001273193A1 (en) 2002-01-21
EP1301639A2 (en) 2003-04-16
US20020017374A1 (en) 2002-02-14
US6622778B1 (en) 2003-09-23

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