EP0996513B1 - Verfahren und vorrichtung zum erzeugen von brammen - Google Patents
Verfahren und vorrichtung zum erzeugen von brammen Download PDFInfo
- Publication number
- EP0996513B1 EP0996513B1 EP98934867A EP98934867A EP0996513B1 EP 0996513 B1 EP0996513 B1 EP 0996513B1 EP 98934867 A EP98934867 A EP 98934867A EP 98934867 A EP98934867 A EP 98934867A EP 0996513 B1 EP0996513 B1 EP 0996513B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- mould
- molten mass
- melt
- fact
- crater
- 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.)
- Expired - Lifetime
Links
- 238000000034 method Methods 0.000 title claims abstract description 11
- 239000000155 melt Substances 0.000 claims abstract description 13
- 238000005266 casting Methods 0.000 claims abstract description 9
- 238000009749 continuous casting Methods 0.000 claims abstract description 9
- 239000007788 liquid Substances 0.000 claims abstract description 9
- 238000004519 manufacturing process Methods 0.000 claims description 4
- 208000029154 Narrow face Diseases 0.000 claims 3
- 238000007654 immersion Methods 0.000 abstract description 18
- 238000009434 installation Methods 0.000 abstract description 4
- 238000003860 storage Methods 0.000 abstract description 4
- 230000009189 diving Effects 0.000 description 7
- IHQKEDIOMGYHEB-UHFFFAOYSA-M sodium dimethylarsinate Chemical class [Na+].C[As](C)([O-])=O IHQKEDIOMGYHEB-UHFFFAOYSA-M 0.000 description 7
- 229910000831 Steel Inorganic materials 0.000 description 5
- 239000010959 steel Substances 0.000 description 5
- 241000196324 Embryophyta Species 0.000 description 4
- 239000002253 acid Substances 0.000 description 2
- 230000035515 penetration Effects 0.000 description 2
- 238000004382 potting Methods 0.000 description 2
- 230000007704 transition Effects 0.000 description 2
- 235000013162 Cocos nucifera Nutrition 0.000 description 1
- 244000060011 Cocos nucifera Species 0.000 description 1
- 239000000356 contaminant Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000007598 dipping method Methods 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000005204 segregation Methods 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
Images
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
- B22D11/04—Continuous casting of metals, i.e. casting in indefinite lengths into open-ended moulds
- B22D11/0408—Moulds for casting thin slabs
-
- 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
- B22D11/04—Continuous casting of metals, i.e. casting in indefinite lengths into open-ended moulds
- B22D11/0406—Moulds with special profile
-
- 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
- B22D11/04—Continuous casting of metals, i.e. casting in indefinite lengths into open-ended moulds
- B22D11/041—Continuous casting of metals, i.e. casting in indefinite lengths into open-ended moulds for vertical casting
-
- 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
- B22D11/12—Accessories for subsequent treating or working cast stock in situ
-
- 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 invention relates to a method for producing slabs with a thickness D> 100 mm at casting speeds v ⁇ 3m / min, in a continuous caster at which a mold from a reservoir via a dip spout melt and from the muzzle side the strand shell encompassing a swamp Strand guiding scaffold, in particular a continuous sheet caster, is withdrawn, and a corresponding continuous caster.
- Figure 4 is at the mouth of the immersion spout Baffle element provided that the liquid melt to two openings at the Distracts narrow sides of the spout.
- Figure 5 shows that two substreams arise with the high energy of each individual filament to swirl the Cause melt.
- DE 43 20 723 describes an immersion nozzle, in particular for thin slab casting, known, which has a lower portion of parallel side walls. Before entering the lower section, a crossbar is provided, which the Melt flow in the direction of the extension of the lower flow shaft deflects. The narrow sides of this especially for thin slab plants The intended diving spout are guided in parallel.
- the diving spouts known from the cited documents produce one Pouring stream that flows into the depths at a relatively high speed Swamp penetrates.
- the invention has the aim set, a method and a corresponding continuous caster for generating of slabs at avoiding concentrations of contaminants and in particular acid gas-resistant steel grades also on continuous sheet casting machines are pourable.
- the invention achieves the goal through the features of Process claim 1 and device claim 5.
- the liquid melt supplied to the mold occurs in a wide range higher speed compared to the strand withdrawal speed in the liquid sump of the slab. Based on the cross-section, the supplied Melt a rectangular profile and have a depth of no more than 2 m in the swamp the same speed as the slab.
- the supplied liquid Melt with an entry profile in the swamp which acts as a rectangle is formed
- the immersion spout used for this has Narrow side walls that are tapered at an angle with respect to the center axis Open ⁇ from 15 to 30 °.
- the profile created by the proposed process in the mold has this also has a positive influence on the movement of the melt in the area of Melt level in the mold and its behavior with regard to the mold powder.
- the proposed method will produce slabs for steel grades with high demands both on the non-metallic degree of purity and on freedom from segregation, as is the case, for example, with acid gas-resistant steel grades be required, possible.
- the reduced Inflow speed of the steel in the ones in the strand shell Swamp reduced the solidification time.
- this allows the specific Casting capacity of the plants are increased or, on the other hand, the specific Secondary cooling reduced with a view to improved surface quality become.
- FIG. 1 shows a storage container 11 to which an immersion spout 12 is attached
- the immersion spout 12 has a tubular part 13 and one on the mouth side spade-shaped part 14 with the narrow sides 16 and the broad sides 17.
- Im A throttle 15 is provided in the transition area of both immersion pouring parts.
- the spade-shaped part 14 extends to a depth T T into a mold 21 filled with melt S, which has narrow sides 22 and broad sides 23.
- the current threads of the melt S are shown with the melt S z supplied and the sump S B. It can be seen that the current threads penetrate into the melt S enveloped by a strand shell K with a view of the broad sides to a depth L.
- the supplied filaments have a speed v K.
- the flow threads In the area of the narrow sides 16 of the immersion nozzle, the flow threads have an angle ⁇ to the central axis 1 and move relatively early towards the narrow sides 22 of the mold and strive in the area of the level P of the melt to the center of the mold 21.
- the view AA is shown with the mold 21, which the Narrow sides 22 and the broad sides 23 which form a rectangle with the Width B and thickness D and area A.
- the immersion nozzle 12 is arranged centrally in the cavity of the mold 21 Broad sides 17 and the narrow sides 16, which form a rectangle with the width b and the thickness d and the area a.
- FIG. 2 schematically shows a section through the continuous casting installation, here an arc continuous casting installation, with the storage container 11 and the immersion spout 12 with the tubular part 13 and the spade-shaped part 14, here the broad sides 17.
- a throttle 15 arranged In the transition area of the immersion pouring parts 13, 14 there is a throttle 15 arranged The mouth of the immersion pouring part 14 projects into the melt S located in the mold 21 to a depth T T.
- the broad side walls 23 of the mold 21 are shown, at the mouth end of which a strand shell K has formed from the slab, which envelops the melt S up to the swamp tip S s .
- the strand guide rollers 24 are arranged downstream of the mold 21.
- the supplied melt S s penetrates into the swamp S B located in the mold at a speed v K, namely at a depth T with respect to the broad sides 23. Then the swamp has a speed v B which corresponds to the slab withdrawal speed and thus also corresponds to the strand shell K.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Continuous Casting (AREA)
- Forging (AREA)
- Multi-Process Working Machines And Systems (AREA)
- Casting Support Devices, Ladles, And Melt Control Thereby (AREA)
- Mechanical Treatment Of Semiconductor (AREA)
- Processing Of Stones Or Stones Resemblance Materials (AREA)
- Diaphragms For Electromechanical Transducers (AREA)
Description
- Figur 1
- den Bereich Tauchausguß/Kokille einer Stranggießeinrichtung
- Figur 2
- seitliche Ansicht einer Bogenstranggießantage
Die Mündung des Tauchausgußteils 14 ragt in die sich in der Kokille 21 befindliche Schmelze S bis in eine Tiefe TT hinein.
- 11
- Vorratsbehälter
- 12
- Tauchausguß
- 13
- Rohrförmiger Teil
- 14
- Spatenförmiger Teil
- 15
- Drossel
- 16
- Schmalseiten Tauchausguß
- 17
- Breitseiten Tauchausguß
- 21
- Kokille
- 22
- Kokillenschmalseite
- 23
- Kokillenbreitseite
- 24
- Strangführungsrollen
- l
- Mittenachse
- K
- Strangschale
- p
- Pegel
- s
- Schmelze
- Sz
- Schmelzenzufuhr
- SB
- Sumpf
- Ss
- Sumpfspitze
- T
- Eindringtiefe Schmelze Schmalseite
- TT
- Tauchtiefe Tauchausguß
- L
- Eindringtiefe Schmelze Breitseite
- vK
- Strömungsgeschwindigkeit Schmelzenzufuhr
- VB
- Strömungsgeschwindigkeit Sumpf
- α
- Öffnungswinkel
- a
- Freier Querschnitt Mündung Tauchausguß
- A
- Innenquerschnitt Kokille
- d
- Lichte Weite Gießteil
- D
- Lichte Weite Schmalseitenkokille
Claims (6)
- Verfahren zum Erzeugen von Grammen, mit einer Dicke D > 100 mm bei Gießgeschwindigkeiten v < 3m/min, in einer Stranggießanlage, bei der einer Kokille (21) aus einem Vorratsbehälter (11) über einen Tauchausguß (12) Schmelze zugeführt und aus der mündungsseitig eine, einen Sumpf umgreifende Strangschale in ein Strangführungsgerüst, insbesondere einer Bogenstranggießanlage, abgezogen wird,
dadurch gekennzeichnet,daß die zugeführte Schmelze in die Kokille (21) mit einer Geschwindigkeit (vk) eintritt, die sich zur Strangabzugsgeschwindigkeit (vB) verhält wie vK : vB = 6:1 1 bis 60:1 unddaß die zugeführte Schmelze in einer Weise geführt wird, daß sie bezogen auf den Schmelzenpegel in breiter Front, im Querschnitt ein Rechteckprofil aufweisend, in einer Länge L < 2 m in den Sumpf eindringt. - Verfahren nach Anspruch 1,
dadurch gekennzeichnet,daß die zugeführte flüssige Schmelze mit einem als Rechteck ausgebildeten Eintrittsprofil in den Sumpf einströmt, wobei sich die lichte Weite (d) des Rechtecks zur Schmalseite der Kokille (D) wie
d : D= 1:3 bis 1:40und die Breite (b) des Rechtecks zur Breitseite der Kokille (B) wie
b : B= 1:7 bis 1:1,2 verhält - Verfahren nach Anspruch 1 oder 2,
dadurch gekennzeichnet, daß die den Schmalseiten (D) der Kokille zugeführte Schmelze unter einem Winkel (α) von α = 15 bis 30° zur Brammenabzugsrichivng in den Sumpf einströmt; - Verfahren nach einem der vorgenannten Ansprüche, dadurch gekennzeichnet, daß die über den Tauchausguß zugeßührte flüssige Schmelze in einer Tiefe (T) auf den Sumpf trifft mit
T = 0,1 bis 1,5 x D. - Stranggießeinrichtung zum Erzeugen von nach Verfahrensanspruch herzustellenden Brammen mit einem Vorratsbehälter (11), aus dem die Schmelze über einen Tauchausguß (12) in eine Kokille (21) mit einer lichten Weite (D) mit D > 100 mm geführt wird und dieser Tauchausguß (12) mindestens ein Gießteil mit einem länglichen Querschnitt besitzt einschließlich eines Drosselelementes (15), das den in diesen Gießteil eintretenden Hauptstrom der Schmelze in Geschwindigkeit und Strömungsfcrm verringert,
dadurch gekennzeichnet, daß der einen länglichen Querschnitt besitzende Gießteil in der Weise ausgestaltet ist, daß die Schmalseitenwände (22) zur Mittenachse einen sich in Strömungsrichtung öffnenden Winkel α = 15 bis 30° ausweisen. - Stranggießeinrichtung nach Anspruch 5,
dadurch gekennzeichnet, daß der freie Querschnitt (a) der Mündung des Gießteils des Tauchausgußes (12) sich zum Innenquerschnitt (A) der Kokille verhält wie
a : A = 1:30 bis 1:300,
wobei die lichte Weite (d) des Gießteils des Tauchausgußes (12) sich zur Schmalseite (D) der Kokille verhält wie d : D = 1:2 bis 1:40.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19724232A DE19724232C2 (de) | 1997-06-03 | 1997-06-03 | Verfahren und Vorrichtung zum Erzeugen von Brammen |
DE19724232 | 1997-06-03 | ||
PCT/DE1998/001544 WO1998055250A1 (de) | 1997-06-03 | 1998-06-03 | Verfahren und vorrichtung zum erzeugen von brammen |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0996513A1 EP0996513A1 (de) | 2000-05-03 |
EP0996513B1 true EP0996513B1 (de) | 2001-10-17 |
Family
ID=7831904
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP98934867A Expired - Lifetime EP0996513B1 (de) | 1997-06-03 | 1998-06-03 | Verfahren und vorrichtung zum erzeugen von brammen |
Country Status (19)
Country | Link |
---|---|
US (1) | US6626229B2 (de) |
EP (1) | EP0996513B1 (de) |
JP (1) | JP4542631B2 (de) |
KR (1) | KR100585413B1 (de) |
AT (1) | ATE206971T1 (de) |
AU (1) | AU8433298A (de) |
BR (1) | BR9810422A (de) |
CA (1) | CA2292473A1 (de) |
CZ (1) | CZ9904328A3 (de) |
DE (2) | DE19724232C2 (de) |
DK (1) | DK0996513T3 (de) |
ES (1) | ES2162461T3 (de) |
HU (1) | HU221712B1 (de) |
PL (1) | PL337129A1 (de) |
SK (1) | SK166399A3 (de) |
TR (1) | TR199903016T2 (de) |
TW (1) | TW404867B (de) |
UA (1) | UA51790C2 (de) |
WO (1) | WO1998055250A1 (de) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AT408962B (de) | 2000-05-31 | 2002-04-25 | Voest Alpine Ind Anlagen | Verfahren zum herstellen eines stranggegossenen vorproduktes |
AT507590A1 (de) † | 2008-11-20 | 2010-06-15 | Siemens Vai Metals Tech Gmbh | Verfahren und stranggiessanlage zum herstellen von dicken brammen |
PL2100676T3 (pl) * | 2008-12-17 | 2012-11-30 | Kovac Peter | Sposób ciągłego odlewania |
JP6666908B2 (ja) * | 2014-06-11 | 2020-03-18 | アルヴェーディ スティール エンジニアリング ソシエタ ペル アチオニ | 高質量流量を分布させるための薄スラブ用ノズル |
CN110695349B (zh) * | 2019-11-21 | 2024-03-12 | 辽宁科技大学 | 一种csp薄板坯连铸高拉速浸入式水口及其制造方法 |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2105881B2 (de) * | 1971-02-01 | 1974-04-04 | Mannesmann Ag, 4000 Duesseldorf | Vorrichtung und Verfahren zum Einleiten einer Schmelze in eine Stranggießkokille |
AT331437B (de) * | 1973-06-14 | 1976-08-25 | Voest Ag | Kontinuierliches stahlstranggiessverfahren und vorrichtung zu dessen durchfuhrung |
US5205343A (en) * | 1989-06-03 | 1993-04-27 | Sms Schloemann-Siemag Aktiengesellschaft | Pouring tube for feeding molten steel into a continuous casting mold |
DE4142447C3 (de) * | 1991-06-21 | 1999-09-09 | Mannesmann Ag | Tauchgießrohr - Dünnbramme |
DE4320723A1 (de) * | 1993-06-23 | 1995-01-05 | Didier Werke Ag | Eintauchausguß |
US5785880A (en) * | 1994-03-31 | 1998-07-28 | Vesuvius Usa | Submerged entry nozzle |
IT1267284B1 (it) * | 1994-08-08 | 1997-01-28 | Danieli Off Mecc | Scaricatore per colata continua |
IT1267299B1 (it) * | 1994-09-30 | 1997-01-28 | Danieli Off Mecc | Scaricatore per cristallizzatore per colata continua di bramme sottili |
DE19512208C1 (de) * | 1995-03-21 | 1996-07-18 | Mannesmann Ag | Tauchausguß zum Gießen von Metall |
US5913357A (en) * | 1995-10-18 | 1999-06-22 | Sumitomo Metal Industries, Ltd. | Method for controlling the level of molten metal for a continuous casting machine |
DE19623787C2 (de) * | 1996-06-04 | 1998-07-02 | Mannesmann Ag | Verfahren und Vorrichtung zum Ausgießen von Stahl aus einem Tauchausguß |
IT1284035B1 (it) * | 1996-06-19 | 1998-05-08 | Giovanni Arvedi | Tuffante per la colata continua di bramme sottili |
-
1997
- 1997-06-03 DE DE19724232A patent/DE19724232C2/de not_active Expired - Fee Related
-
1998
- 1998-03-06 UA UA99126567A patent/UA51790C2/uk unknown
- 1998-06-03 SK SK1663-99A patent/SK166399A3/sk unknown
- 1998-06-03 WO PCT/DE1998/001544 patent/WO1998055250A1/de active IP Right Grant
- 1998-06-03 ES ES98934867T patent/ES2162461T3/es not_active Expired - Lifetime
- 1998-06-03 HU HU0004067A patent/HU221712B1/hu not_active IP Right Cessation
- 1998-06-03 BR BR9810422-5A patent/BR9810422A/pt active Search and Examination
- 1998-06-03 TR TR1999/03016T patent/TR199903016T2/xx unknown
- 1998-06-03 CA CA002292473A patent/CA2292473A1/en not_active Abandoned
- 1998-06-03 AT AT98934867T patent/ATE206971T1/de active
- 1998-06-03 KR KR1019997011238A patent/KR100585413B1/ko not_active IP Right Cessation
- 1998-06-03 PL PL98337129A patent/PL337129A1/xx not_active IP Right Cessation
- 1998-06-03 DK DK98934867T patent/DK0996513T3/da active
- 1998-06-03 JP JP50130999A patent/JP4542631B2/ja not_active Expired - Fee Related
- 1998-06-03 AU AU84332/98A patent/AU8433298A/en not_active Abandoned
- 1998-06-03 CZ CZ19994328A patent/CZ9904328A3/cs unknown
- 1998-06-03 US US09/445,262 patent/US6626229B2/en not_active Expired - Fee Related
- 1998-06-03 EP EP98934867A patent/EP0996513B1/de not_active Expired - Lifetime
- 1998-06-03 DE DE59801802T patent/DE59801802D1/de not_active Expired - Lifetime
- 1998-10-20 TW TW087117456A patent/TW404867B/zh not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
DK0996513T3 (da) | 2001-11-19 |
KR20010013247A (ko) | 2001-02-26 |
US20030150588A1 (en) | 2003-08-14 |
ES2162461T3 (es) | 2001-12-16 |
EP0996513A1 (de) | 2000-05-03 |
US6626229B2 (en) | 2003-09-30 |
JP4542631B2 (ja) | 2010-09-15 |
BR9810422A (pt) | 2000-07-25 |
KR100585413B1 (ko) | 2006-06-02 |
HUP0004067A1 (en) | 2001-03-28 |
WO1998055250A1 (de) | 1998-12-10 |
JP2002501438A (ja) | 2002-01-15 |
CZ9904328A3 (cs) | 2002-03-13 |
TR199903016T2 (xx) | 2000-07-21 |
UA51790C2 (uk) | 2002-12-16 |
HU221712B1 (hu) | 2002-12-28 |
DE59801802D1 (de) | 2001-11-22 |
DE19724232A1 (de) | 1998-12-24 |
DE19724232C2 (de) | 1999-04-15 |
ATE206971T1 (de) | 2001-11-15 |
PL337129A1 (en) | 2000-07-31 |
SK166399A3 (en) | 2000-07-11 |
AU8433298A (en) | 1998-12-21 |
CA2292473A1 (en) | 1998-12-10 |
HUP0004067A3 (en) | 2001-05-28 |
TW404867B (en) | 2000-09-11 |
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