ID24078A - CANAI WHICH SURFACE THE AMORE OR GLASS MIXED METALS FOR CONTINUUING SUPPORT OF METALS - Google Patents

CANAI WHICH SURFACE THE AMORE OR GLASS MIXED METALS FOR CONTINUUING SUPPORT OF METALS

Info

Publication number
ID24078A
ID24078A IDW991508A ID991508A ID24078A ID 24078 A ID24078 A ID 24078A ID W991508 A IDW991508 A ID W991508A ID 991508 A ID991508 A ID 991508A ID 24078 A ID24078 A ID 24078A
Authority
ID
Indonesia
Prior art keywords
casting
molten steel
roll
rolls
metals
Prior art date
Application number
IDW991508A
Other languages
Indonesian (id)
Inventor
Lazer Strezov
Original Assignee
Ishikawajima Harima Heavy Ind
Bhp Steel Jla Pty Ltd
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 Ishikawajima Harima Heavy Ind, Bhp Steel Jla Pty Ltd filed Critical Ishikawajima Harima Heavy Ind
Publication of ID24078A publication Critical patent/ID24078A/en

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21DWORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D11/00Bending 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
    • B21D11/06Bending into helical or spiral form; Forming a succession of return bends, e.g. serpentine form
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B22CASTING; POWDER METALLURGY
    • B22DCASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D11/00Continuous casting of metals, i.e. casting in indefinite lengths
    • B22D11/06Continuous casting of metals, i.e. casting in indefinite lengths into moulds with travelling walls, e.g. with rolls, plates, belts, caterpillars
    • B22D11/0637Accessories therefor
    • B22D11/0648Casting surfaces

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Continuous Casting (AREA)
  • Soft Magnetic Materials (AREA)
  • Manufacture Of Alloys Or Alloy Compounds (AREA)
  • Manufacture And Refinement Of Metals (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.
IDW991508A 1997-06-02 1998-06-02 CANAI WHICH SURFACE THE AMORE OR GLASS MIXED METALS FOR CONTINUUING SUPPORT OF METALS ID24078A (en)

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
ID24078A true ID24078A (en) 2000-07-06

Family

ID=3801395

Family Applications (1)

Application Number Title Priority Date Filing Date
IDW991508A ID24078A (en) 1997-06-02 1998-06-02 CANAI WHICH SURFACE THE AMORE OR GLASS MIXED METALS FOR CONTINUUING SUPPORT OF METALS

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
DE60131034T3 (en) * 2000-05-12 2013-08-29 Nippon Steel & Sumitomo Metal Corporation COOLED CASTING ROLL FOR THE CONTINUOUS CONTINUOUS CASTING OF THIN PRODUCTS AND CONTINUOUS CASTING METHOD
US7485196B2 (en) 2001-09-14 2009-02-03 Nucor Corporation Steel product with a high austenite grain coarsening temperature
US7048033B2 (en) 2001-09-14 2006-05-23 Nucor Corporation Casting steel strip
BRPI0212499B1 (en) * 2001-09-14 2015-12-08 Nucor Corp process for producing continuous casting steel strip and thin steel strip produced by the same
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
US20040144518A1 (en) 2003-01-24 2004-07-29 Blejde Walter N. Casting steel strip with low surface roughness and low porosity
KR101076090B1 (en) 2003-01-24 2011-10-21 누코 코포레이션 Casting steel strip
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
US9149868B2 (en) 2005-10-20 2015-10-06 Nucor Corporation Thin cast strip product with microalloy additions, 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
EP0679114B2 (en) * 1993-11-18 2004-11-03 Castrip, LLC Casting stainless steel strip on surface with specified roughness
AUPN176495A0 (en) * 1995-03-15 1995-04-13 Bhp Steel (Jla) Pty Limited Casting of metal

Also Published As

Publication number Publication date
CN1445033A (en) 2003-10-01
KR20010013319A (en) 2001-02-26
BR9811107A (en) 2000-07-18
ATE256516T1 (en) 2004-01-15
AUPO710497A0 (en) 1997-06-26
EP0986443B1 (en) 2003-12-17
CN1258239A (en) 2000-06-28
JP2002501437A (en) 2002-01-15
CA2288754A1 (en) 1998-12-10
EP0986443A1 (en) 2000-03-22
CN1096900C (en) 2002-12-25
NZ500871A (en) 2001-02-23
EP0986443A4 (en) 2001-01-03
WO1998055251A1 (en) 1998-12-10
DE69820618D1 (en) 2004-01-29

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