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AUPO710497A0 - Casting metal strip - Google Patents

Casting metal strip

Info

Publication number
AUPO710497A0
AUPO710497A0 AUPO7104A AUPO710497A AUPO710497A0 AU PO710497 A0 AUPO710497 A0 AU PO710497A0 AU PO7104 A AUPO7104 A AU PO7104A AU PO710497 A AUPO710497 A AU PO710497A AU PO710497 A0 AUPO710497 A0 AU PO710497A0
Authority
AU
Australia
Prior art keywords
casting
molten steel
roll
rolls
amorphous alloy
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
Application number
AUPO7104A
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.)
BHP Steel JLA Pty Ltd
IHI Corp
Original Assignee
BHP Steel JLA Pty Ltd
IHI Corp
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 BHP Steel JLA Pty Ltd, IHI Corp filed Critical BHP Steel JLA Pty Ltd
Priority to AUPO7104A priority Critical patent/AUPO710497A0/en
Publication of AUPO710497A0 publication Critical patent/AUPO710497A0/en
Priority to NZ500871A priority patent/NZ500871A/en
Priority to CA002288754A priority patent/CA2288754A1/en
Priority to AU76312/98A priority patent/AU730375B2/en
Priority to NZ508869A priority patent/NZ508869A/en
Priority to KR19997011314A priority patent/KR20010013319A/en
Priority to BR9811107-8A priority patent/BR9811107A/en
Priority to AT98923930T priority patent/ATE256516T1/en
Priority to EP98923930A priority patent/EP0986443B1/en
Priority to CN98805502A priority patent/CN1096900C/en
Priority to DE69820618T priority patent/DE69820618D1/en
Priority to PCT/AU1998/000412 priority patent/WO1998055251A1/en
Priority to JP50111699A priority patent/JP2002501437A/en
Priority to IDW991508A priority patent/ID24078A/en
Priority to CN02119196A priority patent/CN1445033A/en
Priority to US10/196,668 priority patent/US20030062146A1/en
Abandoned legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D11/00—Bending not restricted to forms of material mentioned in only one of groups B21D5/00, B21D7/00, B21D9/00; Bending not provided for in groups B21D5/00 - B21D9/00; Twisting
    • B21D11/06—Bending into helical or spiral form; Forming a succession of return bends, e.g. serpentine form
    • 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
    • B22D11/06—Continuous casting of metals, i.e. casting in indefinite lengths into moulds with travelling walls, e.g. with rolls, plates, belts, caterpillars
    • B22D11/0637—Accessories therefor
    • B22D11/0648—Casting surfaces

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Continuous Casting (AREA)
  • Soft Magnetic Materials (AREA)
  • Manufacture And Refinement Of Metals (AREA)
  • Manufacture Of Alloys Or Alloy Compounds (AREA)

Abstract

Twin roll casting has been applied with some success to non-ferrous metals, which solidify rapidly on cooling. The same, however, is not true for ferrous metals, as it has not been possible to achieve sufficiently rapid and even cooling of metal over the casting surfaces of the rolls. This problem has been overcome by utilising a metallic surface for the rolls, which has a high affinity for the molten steel of the casting pool and a melting temperature greater than the temperature of the casting surface. The molten steel produces extremely good wetting of the casting surface of the roll, resulting in a wetting angle of the molten steel on the casting surface of less than 40 DEG . Preferably, this wetting angle is less than 20 DEG and the casting surface has an Arithmetic Mean Roughness Value (Ra) of less than 10 microns. These desirable properties on the roll surface are achieved by selecting an at least partially amorphous alloy of two constituents. Preferably, the alloy is a fully amorphous alloy of the nickel-phosphorus systemcontaining about 10 % phosphorus and the balance nickel, which may be applied by eletroless coating. This roll surface prevents the build-up of iron oxide on the casting surfaces of the rolls, which build-up interferes with the uniform conduction of heat away from the molten steel, resulting in simultaneous solidification of the delta and gamma iron phases (0.01-0.18 %C), which causes a surface defect, known as "crocodile-skin". The net effect of utilising this amorphous alloy for the surface of the casting roll is a superior and uniform conduction of heat away from the molten steel, rapid transformation of the steel's microstructure into the wholly austenitic ( gamma ) region, exhibited by fine prior austenite grain boundaries conforming to dendritic grain boundaries and absence of "crocodile-skin" surface defects on the cast strip.
AUPO7104A 1997-06-02 1997-06-02 Casting metal strip Abandoned AUPO710497A0 (en)

Priority Applications (16)

Application Number Priority Date Filing Date Title
AUPO7104A AUPO710497A0 (en) 1997-06-02 1997-06-02 Casting metal strip
IDW991508A ID24078A (en) 1997-06-02 1998-06-02 CANAI WHICH SURFACE THE AMORE OR GLASS MIXED METALS FOR CONTINUUING SUPPORT OF METALS
BR9811107-8A BR9811107A (en) 1997-06-02 1998-06-02 Process and apparatus for melting metal strip continuously and cast steel strip produced by continuous casting
EP98923930A EP0986443B1 (en) 1997-06-02 1998-06-02 Amorphous or glassy alloy surfaced rolls for the continuous casting of metal strip
AU76312/98A AU730375B2 (en) 1997-06-02 1998-06-02 Amorphous or glassy alloy surfaced rolls for the continuous casting of metal strip
NZ508869A NZ508869A (en) 1997-06-02 1998-06-02 Cast steel strip formed with austentite dendrites
KR19997011314A KR20010013319A (en) 1997-06-02 1998-06-02 Amorphous or Glassy Alloy Surfaced Rolls for the Continuous Casting of Metal Stip
NZ500871A NZ500871A (en) 1997-06-02 1998-06-02 Amorphous or glassy alloy surfaced rolls for the continuous casting of metal strip
AT98923930T ATE256516T1 (en) 1997-06-02 1998-06-02 ROLLS WITH AMORPHOUS OR GLASSY ALLOY SURFACE FOR CONTINUOUS CASTING OF METAL STRIPS
CA002288754A CA2288754A1 (en) 1997-06-02 1998-06-02 Amorphous or glassy alloy surfaced rolls for the continuous casting of metal strip
CN98805502A CN1096900C (en) 1997-06-02 1998-06-02 Amorphous or glassy alloy surfaced rolls for continuous casting of metal strip
DE69820618T DE69820618D1 (en) 1997-06-02 1998-06-02 ROLLERS WITH AMORPHER OR GLASS ALLOY SURFACE FOR CONTINUOUSLY CASTING METAL STRIPS
PCT/AU1998/000412 WO1998055251A1 (en) 1997-06-02 1998-06-02 Amorphous or glassy alloy surfaced rolls for the continuous casting of metal strip
JP50111699A JP2002501437A (en) 1997-06-02 1998-06-02 Metal strip casting
CN02119196A CN1445033A (en) 1997-06-02 2002-05-13 Device for continuous casting metal strip and its roller and its produced steel-casting strip
US10/196,668 US20030062146A1 (en) 1997-06-02 2002-07-15 Amorphous or glassy alloy surfaced rolls for the continuous casting of metal strip

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AUPO7104A AUPO710497A0 (en) 1997-06-02 1997-06-02 Casting metal strip

Publications (1)

Publication Number Publication Date
AUPO710497A0 true AUPO710497A0 (en) 1997-06-26

Family

ID=3801395

Family Applications (1)

Application Number Title Priority Date Filing Date
AUPO7104A Abandoned AUPO710497A0 (en) 1997-06-02 1997-06-02 Casting metal strip

Country Status (12)

Country Link
EP (1) EP0986443B1 (en)
JP (1) JP2002501437A (en)
KR (1) KR20010013319A (en)
CN (2) CN1096900C (en)
AT (1) ATE256516T1 (en)
AU (1) AUPO710497A0 (en)
BR (1) BR9811107A (en)
CA (1) CA2288754A1 (en)
DE (1) DE69820618D1 (en)
ID (1) ID24078A (en)
NZ (1) NZ500871A (en)
WO (1) WO1998055251A1 (en)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ATE361167T1 (en) 2000-05-12 2007-05-15 Nippon Steel Corp COOLED CASTING ROLL FOR CONTINUOUS CASTING OF THIN PRODUCTS AND CONTINUOUS STRONG CASTING PROCESS
US7048033B2 (en) 2001-09-14 2006-05-23 Nucor Corporation Casting steel strip
US20030111206A1 (en) * 2001-09-14 2003-06-19 Blejde Walter N. Casting steel strip
US7485196B2 (en) 2001-09-14 2009-02-03 Nucor Corporation Steel product with a high austenite grain coarsening temperature
US7690417B2 (en) 2001-09-14 2010-04-06 Nucor Corporation Thin cast strip with controlled manganese and low oxygen levels and method for making same
KR101076090B1 (en) 2003-01-24 2011-10-21 누코 코포레이션 Casting steel strip
US20040144518A1 (en) 2003-01-24 2004-07-29 Blejde Walter N. Casting steel strip with low surface roughness and low porosity
US9149868B2 (en) 2005-10-20 2015-10-06 Nucor Corporation Thin cast strip product with microalloy additions, and method for making the same
US9999918B2 (en) 2005-10-20 2018-06-19 Nucor Corporation Thin cast strip product with microalloy additions, and method for making the same
US10071416B2 (en) 2005-10-20 2018-09-11 Nucor Corporation High strength thin cast strip product and method for making the same
AU2008100847A4 (en) 2007-10-12 2008-10-09 Bluescope Steel Limited Method of forming textured casting rolls with diamond engraving
WO2011100798A1 (en) 2010-02-20 2011-08-25 Bluescope Steel Limited Nitriding of niobium steel and product made thereby
US8505611B2 (en) 2011-06-10 2013-08-13 Castrip, Llc Twin roll continuous caster
CN111036865B (en) * 2020-01-10 2024-04-30 中冶赛迪技术研究中心有限公司 Electro-hydraulic direct-drive small square billet continuous casting crystallizer vibration driving device
CN115555525A (en) * 2022-10-14 2023-01-03 四川大学 Device and method for measuring solidification speed of rapidly solidified thin strip in real time

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57130750A (en) * 1981-02-05 1982-08-13 Nittetsu Hard Kk Roll for continuous casting
JPS60196209A (en) * 1984-03-19 1985-10-04 Sumitomo Metal Ind Ltd Three-layer plated hot rolling roll
JPS6260879A (en) * 1985-09-10 1987-03-17 Ngk Insulators Ltd Wear resistant copper alloy member
DE3742594A1 (en) * 1987-12-16 1989-06-29 Schenzel Heinz Guenther Dipl I Method for increasing the corrosion stability of metallic workpieces, and metallic workpiece having an anti-corrosive coating on its surface
JPH02160145A (en) * 1988-12-10 1990-06-20 Kawasaki Steel Corp Cooling roll for producing rapidly cooled strip and production thereof
MY111637A (en) * 1992-11-30 2000-10-31 Bhp Steel Jla Pty Ltd Metal strip casting
KR100305291B1 (en) * 1993-11-18 2001-11-22 얀 윌리암 파 How to cast steel strip
AUPN176495A0 (en) * 1995-03-15 1995-04-13 Bhp Steel (Jla) Pty Limited Casting of metal

Also Published As

Publication number Publication date
KR20010013319A (en) 2001-02-26
CN1096900C (en) 2002-12-25
WO1998055251A1 (en) 1998-12-10
CN1445033A (en) 2003-10-01
EP0986443A1 (en) 2000-03-22
ATE256516T1 (en) 2004-01-15
NZ500871A (en) 2001-02-23
CA2288754A1 (en) 1998-12-10
JP2002501437A (en) 2002-01-15
CN1258239A (en) 2000-06-28
EP0986443B1 (en) 2003-12-17
BR9811107A (en) 2000-07-18
ID24078A (en) 2000-07-06
DE69820618D1 (en) 2004-01-29
EP0986443A4 (en) 2001-01-03

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