BR0309646A - Methods of providing an alumina clamping function and a function of reducing oversized plate inclusions for a continuous casting casing unit and continuous aluminum-cased casting casing and continuous casting casing unit - Google Patents

Methods of providing an alumina clamping function and a function of reducing oversized plate inclusions for a continuous casting casing unit and continuous aluminum-cased casting casing and continuous casting casing unit

Info

Publication number
BR0309646A
BR0309646A BR0309646-7A BR0309646A BR0309646A BR 0309646 A BR0309646 A BR 0309646A BR 0309646 A BR0309646 A BR 0309646A BR 0309646 A BR0309646 A BR 0309646A
Authority
BR
Brazil
Prior art keywords
casting casing
continuous
function
nozzle unit
cao
Prior art date
Application number
BR0309646-7A
Other languages
Portuguese (pt)
Other versions
BR0309646B1 (en
Inventor
Koji Ogata
Koichi Shimizu
Keisuke Asano
Toshiyuki Hokii
Joki Yoshitomi
Original Assignee
Krosakiharima Corp
Lwb Refractories Company
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 Krosakiharima Corp, Lwb Refractories Company filed Critical Krosakiharima Corp
Publication of BR0309646A publication Critical patent/BR0309646A/en
Publication of BR0309646B1 publication Critical patent/BR0309646B1/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
    • B22D11/10—Supplying or treating molten metal
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D41/00—Casting melt-holding vessels, e.g. ladles, tundishes, cups or the like
    • B22D41/50—Pouring-nozzles
    • B22D41/52—Manufacturing or repairing thereof
    • B22D41/54—Manufacturing or repairing thereof characterised by the materials used therefor
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Casting Support Devices, Ladles, And Melt Control Thereby (AREA)
  • Continuous Casting (AREA)
  • Compositions Of Oxide Ceramics (AREA)

Abstract

"MéTODOS DE PROVISãO DE UMA FUNçãO DE IMPEDIR A FIXAçãO DE ALUMINA E UMA FUNçãO DE REDUZIR INCLUSõES DE GRANDE TAMANHO EM PLACAS PARA UMA UNIDADE DE BOCAL PARA LINGOTAMENTO CONTìNUO E DE LINGOTAMENTO CONTìNUO DE AçO ACALMADO COM ALUMìNIO E UNIDADE DE BOCAL PARA LINGOTAMENTO CONTìNUO". A presente invenção apresenta uma técnica de aplicar um material contendo CaO a uma unidade de bocal para vazamento de aço acalmado com alumínio, de tal maneira que a proporção de inclusões de alumina de grande dimensão em placas pode ser reduzida indiferentemente ao tipo de bocal, tal como do tipo em uma única parte como do tipo em múltiplas partes. A proporção de inclusões de alumina de grande dimensão em placas obtidas utilizando uma unidade de bocal do tipo em uma única parte ou uma unidade de bocal do tipo em múltiplas partes, que tem um furo interno através do mesmo a ser usado para vazamento de aço líquido proveniente de um distribuidor em um molde e de refratários contendo CaO aplicados a uma superfície do furo interno tem uma estreita correlação com toda a área superficial do furo interno da unidade do bocal e com a proporção de CaO contida nos refratários aplicados. De acordo com a presente invenção, 50% ou mais de toda a área superficial do furo interno da unidade de bocal é formada de refratários contendo 20% de massa ou mais de CaO para permitir que a proporção de inclusões de alumina de grande dimensão seja reduzida."METHODS FOR PROVIDING AN ALUMINUM FIXING FUNCTION AND A REDUCTION FUNCTION FOR LARGE SIZE INCLUDES FOR A CONTINUOUS LONG DUTCH AND LONG DUTCH UNIT FOR LONG DUTY ACTION. The present invention provides a technique of applying a CaO-containing material to an aluminum-calmed steel pouring nozzle unit such that the proportion of large plate alumina inclusions can be reduced regardless of the type of nozzle such as as single part type as multi part type. The ratio of large plate alumina inclusions obtained using a single part type nozzle unit or a multi part type nozzle unit having an internal bore therethrough to be used for pouring liquid steel from a mold distributor and CaO-containing refractories applied to an inner bore surface has a close correlation with the entire inner bore surface area of the nozzle unit and the proportion of CaO contained in the applied refractories. In accordance with the present invention, 50% or more of the entire inner hole surface area of the nozzle unit is formed of refractory containing 20% or more CaO to allow the proportion of large alumina inclusions to be reduced. .

BRPI0309646-7A 2002-04-30 2003-04-30 aluminum casting continuous casting nozzle unit. BR0309646B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP2002128337A JP4249940B2 (en) 2002-04-30 2002-04-30 Aluminum killed steel casting method
JP2002-128337 2002-04-30
PCT/JP2003/005558 WO2003092929A1 (en) 2002-04-30 2003-04-30 Nozzle for continuous casting of aluminum killed steel and continuous casting method

Publications (2)

Publication Number Publication Date
BR0309646A true BR0309646A (en) 2005-03-01
BR0309646B1 BR0309646B1 (en) 2012-11-27

Family

ID=29397265

Family Applications (1)

Application Number Title Priority Date Filing Date
BRPI0309646-7A BR0309646B1 (en) 2002-04-30 2003-04-30 aluminum casting continuous casting nozzle unit.

Country Status (10)

Country Link
US (1) US20050200057A1 (en)
EP (1) EP1504831B1 (en)
JP (1) JP4249940B2 (en)
KR (1) KR100835398B1 (en)
CN (1) CN1305602C (en)
AU (1) AU2003235985A1 (en)
BR (1) BR0309646B1 (en)
DE (1) DE60326948D1 (en)
MX (1) MXPA04010796A (en)
WO (1) WO2003092929A1 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BRPI0413794B1 (en) * 2003-08-22 2012-01-24 steel nozzle for continuous casting.
US7591976B2 (en) * 2004-03-15 2009-09-22 Krosakiharima Corporation Nozzle for use in continuous casting
JP4926819B2 (en) * 2006-05-26 2012-05-09 新日本製鐵株式会社 Steel continuous casting method
BRPI0916819B1 (en) 2008-07-28 2018-03-06 Nippon Steel & Sumitomo Metal Corporation REFRACTORY MATERIAL FOR AN INTERMEDIATE LAYER OF A CONTINUOUS LANGUAGE NOZZLE AND A CONTINUOUS LANGUAGE NOZZLE
KR101288028B1 (en) * 2010-05-07 2013-07-19 구로사키 하리마 코포레이션 Refractory material, continuous casting nozzle using the refractory material production method for the continuous casting nozzle, and continuous casting method using the continuous casting nozzle
JP6228524B2 (en) * 2013-09-27 2017-11-08 日新製鋼株式会社 Continuous casting method

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4568007A (en) * 1984-01-23 1986-02-04 Vesuvius Crucible Company Refractory shroud for continuous casting
JP2542585B2 (en) * 1986-08-08 1996-10-09 東芝セラミツクス株式会社 Immersion nozzle for continuous casting
US5151201A (en) * 1988-07-01 1992-09-29 Vesuvius Crucible Company Prevention of erosion and alumina build-up in casting elements
US5100035A (en) * 1989-05-01 1992-03-31 Ferro Corporation Permeable MgO nozzle
JP2897893B2 (en) * 1990-08-09 1999-05-31 明智セラミックス株式会社 Nozzle for continuous casting
JPH04158963A (en) * 1990-10-19 1992-06-02 Nippon Steel Corp Nozzle for continuous casting
JPH0780709B2 (en) * 1991-07-29 1995-08-30 東京窯業株式会社 Refractory material
JPH05154627A (en) * 1991-08-19 1993-06-22 Shinagawa Refract Co Ltd Refractory composition for preventing stickness and deposition of non-metallic inclusions
JP2706201B2 (en) 1992-04-13 1998-01-28 黒崎窯業株式会社 Nozzle bore for continuous casting
JPH07214259A (en) * 1994-01-25 1995-08-15 Akechi Ceramics Kk Nozzle for continuous casting of molten steel
JPH0839214A (en) * 1994-07-30 1996-02-13 Kurosaki Refract Co Ltd Nozzle for continuous casting
JP2003040672A (en) * 2001-05-21 2003-02-13 Shinagawa Refract Co Ltd Refractory used for fireproof member for continuous steel casting

Also Published As

Publication number Publication date
JP4249940B2 (en) 2009-04-08
US20050200057A1 (en) 2005-09-15
CN1305602C (en) 2007-03-21
EP1504831A1 (en) 2005-02-09
KR20050006214A (en) 2005-01-15
AU2003235985A1 (en) 2003-11-17
MXPA04010796A (en) 2005-07-05
EP1504831B1 (en) 2009-04-01
WO2003092929A1 (en) 2003-11-13
CN1649684A (en) 2005-08-03
BR0309646B1 (en) 2012-11-27
KR100835398B1 (en) 2008-06-04
EP1504831A4 (en) 2005-08-17
DE60326948D1 (en) 2009-05-14
JP2003320444A (en) 2003-11-11

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Legal Events

Date Code Title Description
B06A Patent application procedure suspended [chapter 6.1 patent gazette]
B07A Application suspended after technical examination (opinion) [chapter 7.1 patent gazette]
B06A Patent application procedure suspended [chapter 6.1 patent gazette]
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 30/04/2003, MEDIANTE O RECOLHIMENTO DA TAXAQUINQUENAL DE MANUTENCAO (ARTIGOS 119 E 120 DA LPI) E OBSERVADAS AS DEMAIS CONDICOES LEGAIS.

B21F Lapse acc. art. 78, item iv - on non-payment of the annual fees in time

Free format text: REFERENTE A 11A ANUIDADE.

B24J Lapse because of non-payment of annual fees (definitively: art 78 iv lpi, resolution 113/2013 art. 12)

Free format text: EM VIRTUDE DA EXTINCAO PUBLICADA NA RPI 2256 DE 01-04-2014 E CONSIDERANDO AUSENCIA DE MANIFESTACAO DENTRO DOS PRAZOS LEGAIS, INFORMO QUE CABE SER MANTIDA A EXTINCAO DA PATENTE E SEUS CERTIFICADOS, CONFORME O DISPOSTO NO ARTIGO 12, DA RESOLUCAO 113/2013.