EP1539401A2 - Coquille pour la coulee continue de metaux liquides, en particulier d'acier liquide - Google Patents

Coquille pour la coulee continue de metaux liquides, en particulier d'acier liquide

Info

Publication number: EP1539401A2
Authority: EP; European Patent Office
Prior art keywords: plates; continuous casting; width; copper; casting mold
Prior art date: 2002-06-13
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.): Granted

Application number

EP03759884A

Other languages

German (de)

English (en)

Other versions

EP1539401B1 (fr

Inventor

Gereon Fehlemann

Hans Streubel

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.)

SMS Siemag AG

Original Assignee

SMS Demag AG

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.)

2002-06-13

Filing date

2003-03-25

Publication date

2005-06-15

2003-03-25 Application filed by SMS Demag AG filed Critical SMS Demag AG

2005-06-15 Publication of EP1539401A2 publication Critical patent/EP1539401A2/fr

2010-05-26 Application granted granted Critical

2010-05-26 Publication of EP1539401B1 publication Critical patent/EP1539401B1/fr

2023-03-25 Anticipated expiration legal-status Critical

Status Expired - Lifetime legal-status Critical Current

Links

229910000831 Steel Inorganic materials 0.000 title claims abstract description 30
239000010959 steel Substances 0.000 title claims abstract description 30
238000009749 continuous casting Methods 0.000 title claims abstract description 19
239000007788 liquid Substances 0.000 title claims abstract description 6
229910001338 liquidmetal Inorganic materials 0.000 title claims abstract description 6
239000010949 copper Substances 0.000 claims abstract description 56
RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 53
229910052802 copper Inorganic materials 0.000 claims abstract description 53
239000002826 coolant Substances 0.000 claims abstract description 41
XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 6
238000005266 casting Methods 0.000 claims description 29
230000005499 meniscus Effects 0.000 abstract 1
238000001816 cooling Methods 0.000 description 3
PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
230000017525 heat dissipation Effects 0.000 description 2
239000011248 coating agent Substances 0.000 description 1
238000000576 coating method Methods 0.000 description 1
230000007547 defect Effects 0.000 description 1
230000000694 effects Effects 0.000 description 1
238000010348 incorporation Methods 0.000 description 1
238000004519 manufacturing process Methods 0.000 description 1
229910052759 nickel Inorganic materials 0.000 description 1
239000002893 slag Substances 0.000 description 1

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
- B22D11/04—Continuous casting of metals, i.e. casting in indefinite lengths into open-ended moulds
- B22D11/055—Cooling the moulds

Definitions

the invention relates to a continuous casting mold for liquid metals, in particular for liquid steel, with insert plates made of steel surrounded by water boxes, forming the casting cross section with a parallel course, and cassette-like copper plates adjoining the steel insert plates, which delimit the casting cavity, and possibly on the End plates inserted into the end faces of the casting cavity to define the casting strand thickness and / or the casting strand width, which close off the casting cavity at the end faces and with coolant channels connecting an inlet with an outlet in the copper plates at the interfaces to the steel insert plates.
the designated continuous casting mold is known from DE 195 81 604 T1.
Such a continuous casting mold forms a so-called cassette mold.
the cassette mold has the cassette-like copper plates lying against the steel insert plates, which delimit the casting cavity.
advantages of the type that fewer water boxes are required, shorter changeover times are necessary for the cassette-like copper plates, lower transport costs due to the lower transport weight, the costs for the coating with nickel are lower and the service life of such molds are higher.
the cassette mold suffers from the disadvantage of a high hot-side temperature in the area of the mold level with the steep temperature drop underneath. This creates a high load on the strand shell on the casting strand and thus the risk of surface defects.
the invention has for its object to propose measures in such a cassette mold against the high temperatures in the area of the mold level by suitable design of the copper plates and / or the steel insert plates.
the object is achieved according to the invention in that the thickness of the copper plates varies in each case between the cooling medium and the copper plate hot side over the width and / or over the height.
the hot side temperature can be evened out over the mold width and the significant temperature drop can be reduced over the mold height below the area of the mold level.
coolant channels run in the copper plate and at least partially in the adjacent steel insert plate.
the same flow velocities are ensured in the cooling channels and on the other hand the production of the coolant channels in the copper plate and in the steel insert plate is considerably simplified.
the improved heat dissipation in the area of the mold level can be further increased by the fact that the coolant channel cross section in the area of the mold level is smaller than in the rest of the course of the coolant channel.
Another measure for reducing the hot side temperature in the casting level area is that in the casting level area the thickness between the coolant channel and the hot side area of the copper plate is less than above and below this area.
the temperature compensation between higher and lower areas within the height of the continuous casting mold is further supported by the fact that the smaller thickness between the coolant channel and the hot side surface of the copper plate is limited to the height section and is continuously increased to a distance in lower sections.
a distance between the hot side surface of the copper plate is constant at the same height sections.
the arrangement of the coolant channels depends on the inner shape of the casting cavity.
the distance to the hot side surface is smaller in the central area than in the edge area. This allows the temperature of the hot side to be evened out.
grooves in the copper plate that are connected to the coolant channel are designed with their groove depths greater than 10 mm and less than 25 mm.
an outside width range of the funnel cross section is between 50 and 80% of the broad side length “L” minus half the funnel width.
Fig. 2 is a vertical partial cross section through the copper plate with the
Fig. 3 shows the same cross section as Fig. 2 for an alternative embodiment
Fig. 4 is a plan view of a mold broadside as a funnel mold.
liquid metals in particular liquid steel
liquid steel are poured into casting strands with different formats and billet, bloom, slab and thin strand cross-sections.
Opposite insert plates 2 made of steel and copper plates 3 abutting in the steel insert plates 2 are fastened within a water box 1, e.g. clamped against the steel insert plates 2 by means of screws 4, which form a cassette.
the copper plates 3 delimit the casting cavity 5. Between the copper plates 3, end plates 7, so-called narrow side plates, are arranged, the thickness 8 of which forms the casting strand thickness or which determine the width of the casting strand by their mutual spacing.
coolant channels 9 are incorporated, each of which is provided with an inlet and an outlet.
the thickness 10 of the copper plates 3 differs between the cooling medium 11 and the copper plate hot side 3a over the width 2 ⁇ L and / or over the height 12 of the mold.
the thickness 10 of the copper plate 3 kept smaller than in the deeper, larger area, so that the heat dissipation in the casting level area 13 is considerably higher than in the deeper area. As a result, a lower hot side temperature is set in the casting level area 13.
the coolant channels 9 in the copper plate 3 can also run at least partially in the adjacent steel insert plate 2, as indicated by the dashed line in FIG. 1.
the copper plate 3 is kept uniformly thick and the coolant channels 9 are also uniformly deep.
a narrower coolant channel 9 is therefore made normal by a steel insert plate 2 opposite in the casting level 13 at a height H1 and narrower at the height H2 that adjoins it downwards, so that the desired height between the copper plate 3 and the steel insert plate 2 re flow rate of the cooling medium 11 results.
the cooling medium 11 can alternatively be guided from top to bottom or from bottom to top.
a smaller coolant channel cross section 14 thus results at the height H2.
the coolant channel cross section 14 (FIG. 3) is designed as a minimum thickness (A min ) in height H2 and the coolant channel cross section 14 is always larger in the lower regions, the lower region of the thickness (A u ) of the copper plate 3 also is always made larger.
the thickness 10 between the coolant channel 9 and the hot side surface 3a of the copper plate 3 according to FIG. 2 is the same at the top and bottom in the area of the mold level 13, according to FIG. 3 this thickness 10 is small at the top and larger at the bottom.
the smaller thickness 10 between the coolant channel 9 and the hot side surface 3a of the copper plate 3 is limited to the height section H2.
This smaller thickness 10 between the coolant channel 9 and the hot side surface 3a of the copper plate 3 is continuously increased to the distance A u in deeper sections with respect to the height section H2.
the copper wall thickness of a funnel mold 17 in front of the cooling medium and / or the cooling groove geometry are designed differently over the mold width 2 ⁇ L.
the hot-side temperature is evened out over the mold width 2 ⁇ L and the significant temperature drop below the mold level area 13 can also be reduced via the mold height 12.
a distance D1, D3 of the hot side surface 3a of the copper plate 3 is kept constant in the same width sections L1, L3. Furthermore, in the same width sections L1, L2, L3, starting from the width sections L1, L3 with the distances D1, D3, a distance D2 in the width section L2 to the central region is reduced to a dimension D2. Grooves 15 connected to the cooling channel 9 are embodied in the copper plate 3 with their groove depths greater than 10 mm and less than 25 mm.
the width section L3 with the greater distance D3 of the coolant channel 9 from the hot side surface 3a of the copper plate 3 is 50-80% of the length range L in the funnel 17a.
An outside width range L1 of the copper plates 3 is between 50-80% of half the broad side length L minus half the funnel width L3.
the grooves 15 lie in the width section L1 with the distances D Cu ⁇ and the groove depth Dp with L2 and Dc U 2 + D P ⁇ 2 as well as with L3 and D CU3 + D PI 3 .
the total groove depth is less than 20 mm and greater than 10 mm.

Landscapes

Engineering & Computer Science (AREA)
Mechanical Engineering (AREA)
Continuous Casting (AREA)
Lubricants (AREA)
Heat Treatment Of Strip Materials And Filament Materials (AREA)

EP03759884A 2002-06-13 2003-03-25 Coquille pour la coulee continue de metaux liquides, en particulier d'acier liquide Expired - Lifetime EP1539401B1 (fr)

Applications Claiming Priority (3)

Application Number	Priority Date	Filing Date	Title
DE10226214A DE10226214A1 (de)	2002-06-13	2002-06-13	Stranggießkokille für flüssige Metalle, insbesondere für flüssigen Stahl
DE10226214		2002-06-13
PCT/EP2003/003081 WO2003106073A2 (fr)	2002-06-13	2003-03-25	Coquille pour la coulee continue de metaux liquides, en particulier d'acier liquide

Publications (2)

Publication Number	Publication Date
EP1539401A2 true EP1539401A2 (fr)	2005-06-15
EP1539401B1 EP1539401B1 (fr)	2010-05-26

Family

ID=29594457

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
EP03759884A Expired - Lifetime EP1539401B1 (fr)	2002-06-13	2003-03-25	Coquille pour la coulee continue de metaux liquides, en particulier d'acier liquide

Country Status (7)

Country	Link
US (1)	US7363958B2 (fr)
EP (1)	EP1539401B1 (fr)
AT (1)	ATE468933T1 (fr)
AU (1)	AU2003226707A1 (fr)
DE (2)	DE10226214A1 (fr)
ES (1)	ES2345610T3 (fr)
WO (1)	WO2003106073A2 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DE102006036708A1 (de) *	2006-08-05	2008-02-07	Sms Demag Ag	Stranggießkokille für flüssige Metalle, insbesondere für flüssige Stahlwerkstoffe
US8251127B2 (en)	2008-06-24	2012-08-28	Nucor Corporation	Strip casting apparatus with independent delivery nozzle and side dam actuators
EP2321075B1 (fr) *	2008-08-06	2018-07-11	SMS group GmbH	Lingotière de coulée continue pour métal en fusion, en particulier pour acier en fusion
IT201600116859A1 (it) *	2016-11-18	2018-05-18	Danieli Off Mecc	Dispositivo di colata continua per bramme sottili

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US3125786A (en) *		1964-03-24		Construction of moolbs used for the continuous
US3978910A (en) *	1975-07-07	1976-09-07	Gladwin Floyd R	Mold plate cooling system
DE3411359A1 (de) *	1984-03-28	1985-10-31	Mannesmann AG, 4000 Düsseldorf	Stranggiesskokille fuer rund- bzw. knueppelquerschnitte, insbesondere fuer das vergiessen von fluessigem stahl
JPH03118943A (ja) *	1989-09-29	1991-05-21	Kawasaki Steel Corp	低・中炭素鋼用連鋳鋳型およびその鋳造方法
US5467810A (en) *	1994-04-01	1995-11-21	Acutus Industries	Continuous metal casting mold
US5526869A (en) *	1994-09-29	1996-06-18	Gladwin Corporation	Mold for continuous casting system
PL183716B1 (pl) *	1996-05-13	2002-07-31	Km Europa Metal Ag	Krystalizator chłodzony cieczą
US5927378A (en) *	1997-03-19	1999-07-27	Ag Industries, Inc.	Continuous casting mold and method
DE19802809A1 (de) *	1998-01-27	1999-07-29	Km Europa Metal Ag	Flüssigkeitsgekühlte Kokille
DE19903929A1 (de)	1999-02-01	2000-08-03	Sms Demag Ag	Kokillenplatte einer Kokille mit trichterförmigem Eingießbereich zum Stranggießen von Metall
JP3420966B2 (ja) *	1999-03-03	2003-06-30	新日本製鐵株式会社	溶融金属の連続鋳造装置
DE10056910A1 (de) *	2000-11-16	2002-05-29	Sms Demag Ag	Knüppel- und Blockkokille mit partiell geregelter Wärmeabfuhr über Kokillenumfang und Kokillenhöhe

2002
- 2002-06-13 DE DE10226214A patent/DE10226214A1/de not_active Withdrawn
2003
- 2003-03-25 ES ES03759884T patent/ES2345610T3/es not_active Expired - Lifetime
- 2003-03-25 EP EP03759884A patent/EP1539401B1/fr not_active Expired - Lifetime
- 2003-03-25 AU AU2003226707A patent/AU2003226707A1/en not_active Abandoned
- 2003-03-25 US US10/525,289 patent/US7363958B2/en not_active Expired - Fee Related
- 2003-03-25 AT AT03759884T patent/ATE468933T1/de active
- 2003-03-25 WO PCT/EP2003/003081 patent/WO2003106073A2/fr not_active Ceased
- 2003-03-25 DE DE50312745T patent/DE50312745D1/de not_active Expired - Lifetime

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO03106073A2 *

Also Published As

Publication number	Publication date
DE50312745D1 (de)	2010-07-08
DE10226214A1 (de)	2003-12-24
WO2003106073A2 (fr)	2003-12-24
US20060102313A1 (en)	2006-05-18
EP1539401B1 (fr)	2010-05-26
WO2003106073A3 (fr)	2004-04-08
ATE468933T1 (de)	2010-06-15
AU2003226707A8 (en)	2003-12-31
US7363958B2 (en)	2008-04-29
ES2345610T3 (es)	2010-09-28
AU2003226707A1 (en)	2003-12-31

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Publication	Publication Date	Title
DE69518359T2 (de)	2000-12-21	Verfahren zum Kontrollieren der Verformung von Seitenwänden einer Kokille sowie Stranggiesskokille
EP1792676B1 (fr)	2009-12-30	Lingotière pour la coulée en continu
EP1317978B1 (fr)	2007-02-07	Tube pour lingotière de coulée continue de métaux
AT412194B (de)	2004-11-25	Verbesserte kokille für eine stranggiessanlage sowie verfahren
DE69518360T2 (de)	2000-12-28	Stranggiesskokille mit verbessertem Wärmeaustausch sowie Verfahren zur Erhöhung des Wärmeaustauschs einer Stranggiesskokille
DE19722877C2 (de)	1999-09-09	Flüssigkeitsgekühlte Stranggießkokille
EP2321075A1 (fr)	2011-05-18	Lingotière de coulée continue pour métal en fusion, en particulier pour acier en fusion
DE60000858T2 (de)	2003-08-28	Verfahren und vorrichtung zum stranggiessen mit hoher geschwindigkeit
WO2002016061A1 (fr)	2002-02-28	Coquille refroidie pour coulee continue permettant la coulee de metal
EP1539401B1 (fr)	2010-05-26	Coquille pour la coulee continue de metaux liquides, en particulier d'acier liquide
DE2657207C2 (de)	1978-10-05	Verfahren zum Stranggießen von Metall-Legierungen, insbesondere Messing-Legierungen und Stranggießkokille zur Durchführung des Verfahrens
EP2049286A1 (fr)	2009-04-22	Lingotière de coulée continue pour métal liquide, notamment matériau liquide d'aciérie
DE1583619A1 (de)	1970-08-20	Transport- bzw. Stuetzwalze fuer Metall-,insbesondere Stahlstranggiessanlagen
EP0972590B1 (fr)	2004-03-31	Lingotière de coulée continue
DE10138988C2 (de)	2003-06-12	Gekühlte Stranggießkokille zum Gießen von Metall
EP1019208B1 (fr)	2002-08-14	Tube pour lingotiere de coulee continue d'aciers, notamment d'aciers peritectiques
DE10351348A1 (de)	2004-06-03	Stranggießkokille zum Gießen von flüssigen Metallen, insbesondere von Stahlwerkstoffen, bei hohen Gießgeschwindigkeiten zu polygonalen Knüppel-, Vorblock-, Vorprofil-Gießsträngen u. dgl.
DE10304543B3 (de)	2004-05-27	Verfahren und Einrichtung zum Stranggießen von flüssigen Metallen, insbesondere von flüssigen Stahlwerkstoffen
DE10256751B4 (de)	2019-09-12	Stranggießkokille zum Gießen von Strängen aus Metallen, insbesondere aus Stahlwerkstoffen
EP1245310B1 (fr)	2005-06-01	Lingotière de coulée continue à tête chaude
EP1799379B1 (fr)	2008-06-04	Garniture d' étanchéité latérale conçue pour un interstice de coul ée formé entre deux cylindres de coulée d'une machine de coulée en bande
DE69809104T2 (de)	2003-07-17	Strangiesskokille für Metalle
EP1561528B1 (fr)	2010-03-24	Lingotière de coulée continue pour métaux liquides, en particulier pour les aciers
DE29706349U1 (de)	1997-07-10	Stranggießkokille
DE102017211108A1 (de)	2019-01-03	Kokillenplatte und Kokille für eine Stranggießanlage sowie Strangguss-Verfahren