EP2170543A1 - Vorrichtung zur verhinderung des verstopfens einer düse, stranggiessvorrichtung damit, verfahren zur verhinderung des verstopfens einer düse und dieses verwendende stranggiessverfahren - Google Patents

Vorrichtung zur verhinderung des verstopfens einer düse, stranggiessvorrichtung damit, verfahren zur verhinderung des verstopfens einer düse und dieses verwendende stranggiessverfahren

Info

Publication number
EP2170543A1
EP2170543A1 EP08778377A EP08778377A EP2170543A1 EP 2170543 A1 EP2170543 A1 EP 2170543A1 EP 08778377 A EP08778377 A EP 08778377A EP 08778377 A EP08778377 A EP 08778377A EP 2170543 A1 EP2170543 A1 EP 2170543A1
Authority
EP
European Patent Office
Prior art keywords
nozzle
inert gas
backpressure
nozzle clogging
casting
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.)
Ceased
Application number
EP08778377A
Other languages
English (en)
French (fr)
Other versions
EP2170543A4 (de
Inventor
Oh Duck Kwon
Ki Hoon Kim
Seung Gyou Kang
Kyoung Mok Lee
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.)
Posco Holdings Inc
Original Assignee
Posco Co 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 Posco Co Ltd filed Critical Posco Co Ltd
Publication of EP2170543A1 publication Critical patent/EP2170543A1/de
Publication of EP2170543A4 publication Critical patent/EP2170543A4/de
Ceased legal-status Critical Current

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
    • B22D11/11—Treating the molten metal
    • B22D11/116—Refining the metal
    • B22D11/117—Refining the metal by treating with gases
    • 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
    • B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
    • 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
    • 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
    • B22D41/14—Closures
    • B22D41/22—Closures sliding-gate type, i.e. having a fixed plate and a movable plate in sliding contact with each other for selective registry of their openings
    • B22D41/42—Features relating to gas injection
    • 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
    • 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
    • B22D41/58—Pouring-nozzles with gas injecting means

Definitions

  • a method for continuous casting according to the present invention includes measuring backpressure of inert gas supplied to a casting nozzle in real time, the casting nozzle being installed between a tundish and a mold; and calculating a nozzle status index from the measured actual backpressure.
  • calculating a nozzle status index may include receiving work variable data of the continuous casting process; and calculating theoretic backpressure from the work variable of the continuous casting process.
  • inert gas is supplied through the first, second and third gas pipes 140, 150 and 160 installed at the upper nozzle 110, the sliding gate 120 and the submerged nozzle 130 to form a gas curtain between the molten steel 102 and the inner wall of the casting nozzle 100.
  • the nozzle clogging index becomes (P - P ), so that it can be finally expressed by one identical to current theoretic actual

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Continuous Casting (AREA)
EP08778377A 2007-06-26 2008-06-26 Vorrichtung zur verhinderung des verstopfens einer düse, stranggiessvorrichtung damit, verfahren zur verhinderung des verstopfens einer düse und dieses verwendende stranggiessverfahren Ceased EP2170543A4 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR1020070062651A KR20080113771A (ko) 2007-06-26 2007-06-26 노즐의 막힘 방지 장치, 이를 구비한 연속 주조 장치, 이를이용한 노즐 막힘 방지 방법 및 연속 주조 방법
PCT/KR2008/003672 WO2009002105A1 (en) 2007-06-26 2008-06-26 Apparatus for preventing nozzle clogging, apparatus for continuous casting having the same, method for preventing nozzle clogging and method for continuous casting using the same

Publications (2)

Publication Number Publication Date
EP2170543A1 true EP2170543A1 (de) 2010-04-07
EP2170543A4 EP2170543A4 (de) 2012-07-25

Family

ID=40185823

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08778377A Ceased EP2170543A4 (de) 2007-06-26 2008-06-26 Vorrichtung zur verhinderung des verstopfens einer düse, stranggiessvorrichtung damit, verfahren zur verhinderung des verstopfens einer düse und dieses verwendende stranggiessverfahren

Country Status (3)

Country Link
EP (1) EP2170543A4 (de)
KR (1) KR20080113771A (de)
WO (1) WO2009002105A1 (de)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101109450B1 (ko) * 2010-04-30 2012-02-09 현대제철 주식회사 침지 노즐 막힘 정도 추정 방법 및 침지 노즐 교환 시기 추정 방법
KR101246522B1 (ko) * 2010-10-27 2013-03-26 현대제철 주식회사 래들교환부 퍼징방법 및 퍼징장치
KR101320342B1 (ko) * 2011-09-28 2013-10-23 현대제철 주식회사 개재물이 혼입된 슬라브 추출장치 및 추출방법
KR101412536B1 (ko) * 2012-01-31 2014-06-26 현대제철 주식회사 연속주조시 연연주수 예측 장치 및 그 방법
KR101400045B1 (ko) * 2012-04-26 2014-05-30 현대제철 주식회사 연속주조시 연연주 가능 예측방법
KR101581550B1 (ko) * 2014-04-29 2015-12-31 현대제철 주식회사 용강 내 가스분포 예측 방법
JP6515388B2 (ja) * 2015-10-02 2019-05-22 日本製鉄株式会社 連続鋳造用の上ノズル
KR102122656B1 (ko) * 2018-09-27 2020-06-12 현대제철 주식회사 연주공정에서의 배관 내 가스의 누기 예측 장치 및 그 방법
CN110883332B (zh) * 2019-11-21 2023-08-15 中冶赛迪技术研究中心有限公司 一种在线检测水口堵塞的方法及系统
CN112157240B (zh) * 2020-09-30 2022-03-22 首钢集团有限公司 一种结晶器浸入式水口堵塞的检测方法
CN114103103B (zh) * 2021-11-23 2023-09-29 栗荣安 一种用于打印自贴式鼻部美容塑形产品的3d打印机

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07112253A (ja) * 1993-10-14 1995-05-02 Nippon Steel Corp 連続鋳造装置における不活性ガス流量制御装置
KR20000045533A (ko) * 1998-12-30 2000-07-15 이구택 연속주조시 턴디쉬 노즐 막힘 방지 방법

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102004057381A1 (de) * 2004-11-26 2006-06-01 Heraeus Electro-Nite International N.V. Verfahren zur Regelung des Durchflusses sowie Bodenausguss für ein metallurgisches Gefäß

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07112253A (ja) * 1993-10-14 1995-05-02 Nippon Steel Corp 連続鋳造装置における不活性ガス流量制御装置
KR20000045533A (ko) * 1998-12-30 2000-07-15 이구택 연속주조시 턴디쉬 노즐 막힘 방지 방법

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO2009002105A1 *

Also Published As

Publication number Publication date
WO2009002105A9 (en) 2009-02-19
KR20080113771A (ko) 2008-12-31
WO2009002105A1 (en) 2008-12-31
EP2170543A4 (de) 2012-07-25

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