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 PDFInfo
- 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
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)
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10195658T DE10195658B4 (de) | 2000-12-22 | 2001-12-22 | Vorrichtung und Verfahren zum Zuführen von geschmolzenem Metall in eine Form beim Stranggießen |
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 |
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)
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 |
WO2012083452A1 (en) * | 2010-12-22 | 2012-06-28 | Novelis Inc. | Elimination of shrinkage cavity in cast ingots |
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)
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)
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 |
-
2000
- 2000-12-22 KR KR1020000080568A patent/KR20020051088A/ko not_active Application Discontinuation
-
2001
- 2001-12-22 JP JP2002552697A patent/JP2004516145A/ja active Pending
- 2001-12-22 DE DE10195658T patent/DE10195658B4/de not_active Expired - Fee Related
- 2001-12-22 WO PCT/KR2001/002246 patent/WO2002051568A1/en active Application Filing
Patent Citations (2)
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 |
---|---|
DE10195658B4 (de) | 2004-02-12 |
KR20020051088A (ko) | 2002-06-28 |
JP2004516145A (ja) | 2004-06-03 |
DE10195658T1 (de) | 2003-08-07 |
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