BRPI0607866A2 - chapa de aço de carbono extremamente baixo, excelente em caracterìsticas de superfìcie, capacidade de trabalho, e conformabilidade, e um método de produção de placas lingotadas de carbono extremamente baixo - Google Patents

chapa de aço de carbono extremamente baixo, excelente em caracterìsticas de superfìcie, capacidade de trabalho, e conformabilidade, e um método de produção de placas lingotadas de carbono extremamente baixo

Info

Publication number
BRPI0607866A2
BRPI0607866A2 BRPI0607866-4A BRPI0607866A BRPI0607866A2 BR PI0607866 A2 BRPI0607866 A2 BR PI0607866A2 BR PI0607866 A BRPI0607866 A BR PI0607866A BR PI0607866 A2 BRPI0607866 A2 BR PI0607866A2
Authority
BR
Brazil
Prior art keywords
extremely low
low carbon
conformability
production method
surface features
Prior art date
Application number
BRPI0607866-4A
Other languages
English (en)
Inventor
Katsuhiro Sasai
Wataru Ohashi
Original Assignee
Nippon Steel 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 Nippon Steel Corp filed Critical Nippon Steel Corp
Publication of BRPI0607866A2 publication Critical patent/BRPI0607866A2/pt
Publication of BRPI0607866B1 publication Critical patent/BRPI0607866B1/pt

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
    • B22D11/001—Continuous casting of metals, i.e. casting in indefinite lengths of specific alloys
    • 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
    • B22D11/10—Supplying or treating molten metal
    • B22D11/11—Treating the molten metal
    • B22D11/114—Treating the molten metal by using agitating or vibrating means
    • B22D11/115—Treating the molten metal by using agitating or vibrating means by using magnetic fields
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
    • C21C7/00—Treating molten ferrous alloys, e.g. steel, not covered by groups C21C1/00 - C21C5/00
    • C21C7/0006—Adding metallic additives
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
    • C21C7/00—Treating molten ferrous alloys, e.g. steel, not covered by groups C21C1/00 - C21C5/00
    • C21C7/04—Removing impurities by adding a treating agent
    • C21C7/06—Deoxidising, e.g. killing
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
    • C21C7/00—Treating molten ferrous alloys, e.g. steel, not covered by groups C21C1/00 - C21C5/00
    • C21C7/04—Removing impurities by adding a treating agent
    • C21C7/068—Decarburising
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
    • C21C7/00—Treating molten ferrous alloys, e.g. steel, not covered by groups C21C1/00 - C21C5/00
    • C21C7/10—Handling in a vacuum
    • 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
    • C22C38/001—Ferrous alloys, e.g. steel alloys containing N
    • 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
    • C22C38/004—Very low carbon steels, i.e. having a carbon content of less than 0,01%
    • 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
    • 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
    • C22C38/04—Ferrous alloys, e.g. steel alloys containing manganese
    • 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
    • C22C38/06—Ferrous alloys, e.g. steel alloys containing aluminium
    • 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
    • C22C38/08—Ferrous alloys, e.g. steel alloys containing nickel
    • 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
    • C22C38/12—Ferrous alloys, e.g. steel alloys containing tungsten, tantalum, molybdenum, vanadium, or niobium
    • 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
    • C22C38/14—Ferrous alloys, e.g. steel alloys containing titanium or zirconium
    • 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
    • C22C38/16—Ferrous alloys, e.g. steel alloys containing copper

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • Treatment Of Steel In Its Molten State (AREA)
  • Continuous Casting (AREA)
  • Heat Treatment Of Sheet Steel (AREA)

Abstract

CHAPA DE AçO DE CARBONO EXTREMAMENTE BAIXO, EXCELENTE EM CARACTERìSTICAS DE SUPERFìCIE, CAPACIDADE DE TRABALHO, E CONFORMABILIDADE, E UM MéTODO DE PRODUçãO DE PLACAS LINGOTADAS DE CARBONO EXTREMAMENTE BAIXO. A presente invenção refere-se a um método de produção de uma chapa de aço lingotada de carbono extremamente baixa caracterizada pelo lingotamento do aço fundido obtido reduzindo-se a concentração de carbono do aço fundido para 0,005% em massa ou menos, e então adicionando-se Cu, Nb e B ao aço fundido, além disso ajustando-se a concentração de oxigénio dissolvido no aço fundido para 0,01% em massa a 0,06% em massa e a chapa de aço de carbono extremamente baixo contendo C: 0,005% em massa ou menos, AI solúvel em ácido: 0,005% em massa ou menos, e também Cu, Nb e B, caracterizada pelo fato de que o aço tem óxidos finos com um diâmetro de 0,5 jim a 30 ~tm dispersos no mesmo em uma quantidade de 1.000 partículas/cm^ 2^ a 1.000.000 de partículas/cm^ 2^.
BRPI0607866-4B1A 2005-02-18 2006-02-16 Método de produção de uma placa lingotada de aço, bem como chapa de aço BRPI0607866B1 (pt)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
JP2005-041893 2005-02-18
JP2005041893 2005-02-18
JP2005-300096 2005-10-14
JP2005300096A JP4873921B2 (ja) 2005-02-18 2005-10-14 表面性状、加工性および成形性に優れた極低炭素鋼板および極低炭素鋳片の製造方法
PCT/JP2006/303201 WO2006088223A1 (ja) 2005-02-18 2006-02-16 表面性状、加工性および成形性に優れた極低炭素鋼板および極低炭素鋳片の製造方法

Publications (2)

Publication Number Publication Date
BRPI0607866A2 true BRPI0607866A2 (pt) 2009-10-20
BRPI0607866B1 BRPI0607866B1 (pt) 2014-03-04

Family

ID=36916618

Family Applications (1)

Application Number Title Priority Date Filing Date
BRPI0607866-4B1A BRPI0607866B1 (pt) 2005-02-18 2006-02-16 Método de produção de uma placa lingotada de aço, bem como chapa de aço

Country Status (7)

Country Link
US (1) US20120261085A1 (pt)
EP (1) EP1852514B1 (pt)
JP (1) JP4873921B2 (pt)
KR (1) KR100886046B1 (pt)
BR (1) BRPI0607866B1 (pt)
TW (1) TWI340173B (pt)
WO (1) WO2006088223A1 (pt)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102575308A (zh) * 2009-07-30 2012-07-11 塔塔钢铁艾默伊登有限责任公司 生产超低碳钢板坯、带材或片材的过程
JP5458779B2 (ja) * 2009-09-29 2014-04-02 Ｊｆｅスチール株式会社 鋼鋳片の連続鋳造方法
EP2546008B1 (en) * 2010-03-10 2016-03-09 JFE Steel Corporation Method for continuously casting steel and process for producing steel sheet
WO2012104306A1 (en) * 2011-01-31 2012-08-09 Tata Steel Ijmuiden Bv Process for producing high strength steel, and to a steel produced thereby
CN104294150B (zh) * 2014-10-30 2016-05-18 武汉钢铁(集团)公司 屏蔽线用钢及其生产方法

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TW415967B (en) * 1996-02-29 2000-12-21 Kawasaki Steel Co Steel, steel sheet having excellent workability and method of the same by electric furnace-vacuum degassing process
US6290789B1 (en) * 1997-06-26 2001-09-18 Kawasaki Steel Corporation Ultrafine-grain steel pipe and process for manufacturing the same
JP3372958B2 (ja) * 1997-12-08 2003-02-04 新日本製鐵株式会社 溶融金属の鋳造方法およびその装置並びに鋳片
JP3537685B2 (ja) * 1998-10-30 2004-06-14 新日本製鐵株式会社 介在物性欠陥の少ない薄鋼板用鋳片およびその製造方法
JP2001026843A (ja) * 1999-07-13 2001-01-30 Nippon Steel Corp 加工性、耐泡・黒点性およびほうろう密着性に優れた連続鋳造ほうろう用鋼板およびその製造方法
JP3760144B2 (ja) * 2001-08-07 2006-03-29 新日本製鐵株式会社 極低炭素鋼板、極低炭素鋼鋳片およびその製造方法
JP4660038B2 (ja) * 2001-09-27 2011-03-30 新日本製鐵株式会社 薄板用鋼板の溶製方法およびその鋳片
FR2833970B1 (fr) * 2001-12-24 2004-10-15 Usinor Demi-produit siderurgique en acier au carbone et ses procedes de realisation, et produit siderurgique obtenu a partir de ce demi-produit, notamment destine a la galvanisation
JP2004143470A (ja) * 2002-08-29 2004-05-20 Nippon Steel Corp 塗装焼付硬化性能と常温遅時効性に優れた鋼板およびその製造方法
JP3852396B2 (ja) * 2002-11-07 2006-11-29 住友金属工業株式会社 薄鋼板および薄鋼板用溶鋼の脱酸方法
JP4227431B2 (ja) * 2003-02-12 2009-02-18 新日本製鐵株式会社 高強度高延性鋼板及びその製造方法

Also Published As

Publication number Publication date
BRPI0607866B1 (pt) 2014-03-04
TWI340173B (en) 2011-04-11
EP1852514A4 (en) 2009-11-11
KR20070094859A (ko) 2007-09-21
EP1852514B1 (en) 2012-08-08
WO2006088223A1 (ja) 2006-08-24
JP4873921B2 (ja) 2012-02-08
KR100886046B1 (ko) 2009-02-26
EP1852514A1 (en) 2007-11-07
US20120261085A1 (en) 2012-10-18
TW200632112A (en) 2006-09-16
JP2006257542A (ja) 2006-09-28

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Legal Events

Date Code Title Description
B25G Requested change of headquarter approved

Owner name: NIPPON STEEL CORPORATION (JP)

B07A Application suspended after technical examination (opinion) [chapter 7.1 patent gazette]
B25D Requested change of name of applicant approved

Owner name: NIPPON STEEL AND SUMITOMO METAL CORPORATION (JP)

B09A Decision: intention to grant [chapter 9.1 patent gazette]
B16A Patent or certificate of addition of invention granted [chapter 16.1 patent gazette]

Free format text: PRAZO DE VALIDADE: 20 (VINTE) ANOS CONTADOS A PARTIR DE 16/02/2006, OBSERVADAS AS CONDICOES LEGAIS.

B25D Requested change of name of applicant approved