WO2002051568A1 - Apparatus and method for supplying molten metal to mould in continuous casting - Google Patents

Apparatus and method for supplying molten metal to mould in continuous casting Download PDF

Info

Publication number
WO2002051568A1
WO2002051568A1 PCT/KR2001/002246 KR0102246W WO02051568A1 WO 2002051568 A1 WO2002051568 A1 WO 2002051568A1 KR 0102246 W KR0102246 W KR 0102246W WO 02051568 A1 WO02051568 A1 WO 02051568A1
Authority
WO
WIPO (PCT)
Prior art keywords
molten metal
mould
tundish
connecting pipe
top surface
Prior art date
Application number
PCT/KR2001/002246
Other languages
English (en)
French (fr)
Inventor
Sang-Joon Kim
In-Cheol Kim
Myung-Jong Cho
Original Assignee
Research Institute Of Industrial Science & Technology
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 Research Institute Of Industrial Science & Technology filed Critical Research Institute Of Industrial Science & Technology
Priority to JP2002552697A priority Critical patent/JP2004516145A/ja
Priority to DE10195658T priority patent/DE10195658B4/de
Publication of WO2002051568A1 publication Critical patent/WO2002051568A1/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
    • B22D11/16—Controlling or regulating processes or operations
    • B22D11/20—Controlling or regulating processes or operations for removing cast stock
    • B22D11/201—Controlling or regulating processes or operations for removing cast stock responsive to molten metal level or slag level
    • 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
    • B22D11/16—Controlling or regulating processes or operations
    • B22D11/18—Controlling or regulating processes or operations for pouring
    • B22D11/181—Controlling or regulating processes or operations for pouring responsive to molten metal level or slag level
    • 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
    • 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

Definitions

  • the present invention relates to an apparatus for supplying molten
  • continuous casting comprises a ladle 2 for supplying molten metal 1 to a
  • a submerged nozzle 5 opened downward is formed on the bottom of
  • the tundish 4 has a stopper rod 8 in order to control the tundish 4
  • the thickness of the slab varies from about
  • the submerged nozzle has a cross-sectional area of about 80* 70mm 2 .
  • the cross-sectional area of the slab is twenty to forty times as large
  • molten metal at the end of the submerged nozzle is twenty to forty times as
  • molten metal is injected into the mould 6 with a difference in speed between the injection and the casting, and the flow of
  • a method of modifying the outlet angle of the submerged nozzle has
  • sectional area near the outlet of a submerged nozzle is increased without
  • the present invention provides an
  • the connecting pipe is provided with an inlet valve on an upwardly
  • the connecting pipe is unified with a side wall of said
  • tundish tundish, and is provided with an relief valve on an upwardly curved side
  • the apparatus of the present invention further comprises a
  • supporting means is connected to said tundish from below.
  • the present invention also provides a method for supplying molten
  • the present invention is capable of increasing the cross-sectional area of the submerged nozzle by controlling the flow rate of molten metal injected into
  • the mould through employing a difference in level of the top surfaces of the
  • nonmetallic interposing materials can be improved, and consequently both
  • the surface quality and the interior quality of the slab can be improved.
  • Fig. 1 is a schematic side view of an apparatus for supplying molten
  • Fig. 2 is a schematic side view of an apparatus for supplying molten
  • FIGs. 3A to 3D are schematic side views showing a process for
  • Fig. 4 is a schematic side view of an apparatus for supplying molten
  • Fig. 1 is a schematic side view of an apparatus for supplying molten
  • the tundish 16 is capable of containing molten metal supplied from
  • the tundish 16 is not
  • the connecting pipe 22 is shaped in a bent form, with an inlet end 24 submerged below the top surface of the molten metal stored in the
  • the connecting pipe 22 comprises in one united body
  • the inlet end 24 being provided substantially
  • connecting part 26 being bent and extended horizontally from the inlet end
  • the shape of the connecting pipe 22 is not restricted to
  • connecting pipe 22 is provided with an inlet valve 30
  • the connecting pipe 22 can be filled with molten metal by
  • the gate valve 32 may also be used to control the quantity of molten metal
  • molten metal stored in the tundish 16 is kept higher than the level L2 of the
  • the molten metal stored in the tundish 16 may be set through controlling
  • Fig. 2 is a schematic side view of an apparatus for supplying molten
  • invention is designed to supply the molten metal 14 to a mould 20 after it is
  • the connecting pipe 42 is united with the tundish 40 by
  • the connecting pipe 42 is shaped in a bent form, which is extended
  • the connecting pipe 42 comprises in one united body
  • connecting part 46 being bent and extended horizontally from the inlet end
  • the shape of the connecting pipe 42 is, however, not restricted to
  • the connecting pipe 42 is provided with a relief valve 47
  • Air inside the connecting pipe 42 can be exhausted by using the
  • the gate valve 50 may be used to control the quantity
  • molten metal stored in the tundish 40 is kept higher than the level L2 of the
  • the molten metal stored in the tundish 40 may be set through controlling the
  • the connecting pipe is completely filled with molten metal, and that the level of molten metal in the tundish is higher
  • valve 50 injecting the molten metal until all the air inside is exhausted
  • the mould is supplied with molten metal by
  • molten metal is supplied from the ladle to the
  • valve 50 is opened to inject molten metal into the mould therethrough.
  • tundish can be controlled by controlling the quantity of the molten metal
  • the tundish can be controlled, by moving the tundish up and down with the
  • required speed may be estimated as follows.
  • L2 of the top surface of the molten metal in the mould is as follows.
  • P, z, V, p, and g indicate pressure, height, flow speed, density
  • h A represents energy
  • h L represents energy loss
  • subscript t and m indicate
  • Equation (1 ) may be simplified as follows.
  • pipe is composed of pipe friction loss (major loss) Y ⁇ - and minor loss h 2 , which may be estimated as follows.
  • f, ⁇ K, L, d, and V indicate coefficient of friction, sum of loss
  • pipe 22 has two right-angled bent portions and is 1.5m long with a regular
  • the loss coefficient K, at a sharp inlet is estimated at about 0.5

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Continuous Casting (AREA)
PCT/KR2001/002246 2000-12-22 2001-12-22 Apparatus and method for supplying molten metal to mould in continuous casting WO2002051568A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP2002552697A JP2004516145A (ja) 2000-12-22 2001-12-22 連続鋳造用溶融金属供給装置及び連続鋳造用溶融金属供給方法
DE10195658T DE10195658B4 (de) 2000-12-22 2001-12-22 Vorrichtung und Verfahren zum Zuführen von geschmolzenem Metall in eine Form beim Stranggießen

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR1020000080568A KR20020051088A (ko) 2000-12-22 2000-12-22 연속주조용 용융금속 공급장치 및 그 방법
KR2000/80568 2000-12-22

Publications (1)

Publication Number Publication Date
WO2002051568A1 true WO2002051568A1 (en) 2002-07-04

Family

ID=19703483

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/KR2001/002246 WO2002051568A1 (en) 2000-12-22 2001-12-22 Apparatus and method for supplying molten metal to mould in continuous casting

Country Status (4)

Country Link
JP (1) JP2004516145A (ja)
KR (1) KR20020051088A (ja)
DE (1) DE10195658B4 (ja)
WO (1) WO2002051568A1 (ja)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101129990B1 (ko) * 2010-02-26 2012-03-26 현대제철 주식회사 연속 주조 공정 모사용 수 모델의 몰드 탕면 레벨 제어 장치 및 방법
BR112013013129B1 (pt) * 2010-12-22 2018-07-17 Novelis Inc método de eliminar completa ou parcialmente uma cavidade de contração em um lingote de metal
KR20130125160A (ko) * 2012-05-08 2013-11-18 포항공과대학교 산학협력단 청정강 제조 장치 및 이를 이용한 정련 방법
KR101582328B1 (ko) 2013-12-30 2016-01-11 이영재 진공을 이용한 용융 재료 정량 공급장치
CN106890960A (zh) * 2017-03-17 2017-06-27 华北理工大学 一种虹吸水口及用其连铸控流保护浇注的方法

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4600047A (en) * 1984-03-29 1986-07-15 Sumitomo Metal Industries, Ltd. Process for controlling the molten metal level in continuous thin slab casting
FR2607738A3 (fr) * 1986-12-03 1988-06-10 Siderurgie Fse Inst Rech Dispositif pour l'alimentation en metal en fusion des lingotieres de coulee continue

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5997748A (ja) * 1982-11-25 1984-06-05 Kawasaki Steel Corp 連通管を用いた連続鋳造方法ならびにその装置
JPS6068142A (ja) * 1983-09-26 1985-04-18 Nippon Steel Corp 気泡ポンプによる溶融金属の移送方法
JP2726096B2 (ja) * 1989-04-27 1998-03-11 川崎製鉄株式会社 静磁場を用いる鋼の連続鋳造方法
SE500745C2 (sv) * 1991-01-21 1994-08-22 Asea Brown Boveri Sätt och anordning vid gjutning i kokill
DE19512209C1 (de) * 1995-03-21 1996-07-18 Mannesmann Ag Verfahren und Vorrichtung zum Einfüllen metallischer Schmelze in eine Kokille

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4600047A (en) * 1984-03-29 1986-07-15 Sumitomo Metal Industries, Ltd. Process for controlling the molten metal level in continuous thin slab casting
FR2607738A3 (fr) * 1986-12-03 1988-06-10 Siderurgie Fse Inst Rech Dispositif pour l'alimentation en metal en fusion des lingotieres de coulee continue

Also Published As

Publication number Publication date
JP2004516145A (ja) 2004-06-03
KR20020051088A (ko) 2002-06-28
DE10195658T1 (de) 2003-08-07
DE10195658B4 (de) 2004-02-12

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