EP0633080B2 - Continuous casting mould for casting thin slabs - Google Patents
Continuous casting mould for casting thin slabs Download PDFInfo
- Publication number
- EP0633080B2 EP0633080B2 EP94110511A EP94110511A EP0633080B2 EP 0633080 B2 EP0633080 B2 EP 0633080B2 EP 94110511 A EP94110511 A EP 94110511A EP 94110511 A EP94110511 A EP 94110511A EP 0633080 B2 EP0633080 B2 EP 0633080B2
- Authority
- EP
- European Patent Office
- Prior art keywords
- continuous casting
- strips
- narrow side
- narrow
- side walls
- 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
- 238000005266 casting Methods 0.000 title claims abstract description 10
- 238000009749 continuous casting Methods 0.000 title claims abstract description 9
- 230000015572 biosynthetic process Effects 0.000 claims description 3
- 238000000465 moulding Methods 0.000 abstract description 6
- 238000001816 cooling Methods 0.000 description 3
- 238000009413 insulation Methods 0.000 description 2
- 239000000498 cooling water Substances 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000006735 deficit Effects 0.000 description 1
- 230000003292 diminished effect Effects 0.000 description 1
- 230000000750 progressive effect Effects 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
- B22D11/04—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 Pouring thin slabs with cooled broad side walls and adjustably arranged between them, refrigerated narrow side walls that have an upper molding with an extended pouring area and a lower support part.
- the object of the invention is to create a Chill mold of the specified type, with no impairment the dimensional stability in a simple way the formation from edge cracks in the thin slab avoided becomes. An adjustment of the narrow side wall is intended and a seal at the lower end of the mold is possible his.
- each narrow side wall consists of the working side of each narrow side wall a flat upper section and a lower one Section with lowered side stripes.
- each narrow side wall from an upper one Section with raised side stripes and a flat one lower section.
- the width of the side strips is advantageous maximum 15 mm.
- the length is protruding side stripes in the upper section of the Narrow side wall at least 400 mm.
- FIG. 1 and 2 there is a mold for pouring thin slabs from two broad side walls 1,2 and two laterally between the broad side walls 1, 2 adjustable Narrow side walls 3, 4.
- the wide side walls 1, 2 are curved and form in the embodiment above an extended pouring area 5.
- the broad side walls 1, 2 and the narrow side walls 3, 4 are with Cooling water channels 6 provided.
- FIG. 1 An inventive design of the working side of the narrow side walls 3 according to FIG. 1, left side illustrated in Figures 3, 5 and 7. After that exist the narrow side walls 3 from an upper section 3a with flat work surface 3a 'and a lower one Section 3b. A middle one is aligned in the lower section 3b Strip 3b 'with the top work surface 3a'. Two lateral strips 3b "are opposite the middle Strip 3b 'deepened. Its width is advantageously less than 15 mm.
- FIG. 1 An alternative design of the Working side of the narrow side wall 4 according to FIG. 1, right side, is illustrated in Figures 4, 6 and 8.
- the narrow side walls 4 consist of one upper section 4a and a lower section 4b.
- the upper section 4a has a central strip 4a ' and two protruding side strips 4a " lower section 4b forms one with the middle stripe 4a 'of the upper section aligned, overall flat Work surface 4b '
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Continuous Casting (AREA)
- Fluid-Pressure Circuits (AREA)
Abstract
Description
Die Erfindung betrifft eine Stranggießkokille zum Gießen von Dünnbrammen mit gekühlten Breitseitenwänden und zwischen diesen verstellbar angeordneten, gekühlten Schmalseitenwänden, die einen oberen Formteil mit einem erweiterten Eingießbereich und einen unteren Stützteil bilden.The invention relates to a continuous casting mold for Pouring thin slabs with cooled broad side walls and adjustably arranged between them, refrigerated narrow side walls that have an upper molding with an extended pouring area and a lower support part.
Bei einer derartigen, durch die DE-A1 41 31 829 bekannten Kokille bilden die gekühlten Breitseitenwände und Schmalseitenwände den oberen Formteil und den die Dünnbramme allseitig bis zum Kokillenausgang umschließenden Stützteil. Der Stützteil wird unten zum Anfahren vom Anfahrkopf verschlossen. Durch Verstellung der Schmalseitenwände kann die gewünschte Breite der Dünnbramme eingestellt werden. Die bekannte Kokille hat den Nachteil, daß es insbesondere beim Gießen mit hohen Gießgeschwindigkeiten zur Rißbildung in den Kanten der Dünnbrammen kommt. Dies führt zur Qualitätsminderung im gewalzten Fertigprodukt.In such a, by DE-A1 41 31 829 The chilled broad side walls form the well-known mold and narrow side walls the upper molding and the thin slab on all sides up to the mold exit enclosing support part. The support part is below closed from the start head for starting. By adjustment the narrow side walls can be the desired one Width of the thin slab can be set. The Known mold has the disadvantage that it is in particular when casting at high casting speeds to form cracks comes in the edges of the thin slabs. This leads to a reduction in quality in the rolled finished product.
Durch die DE-A2 19 06 261 ist es bei der Gattung der Knüppelkokillen bekannt, 300 - 500 mm unter dem Gießspiegel in der Kokillenwandung Eckenspalte vorzusehen und diese Eckenspalte im Abstand durch wärmedämmende Wandplatten abzudecken. Bei dieser aufwendigen Kokille ist eine Endabdichtung durch den Anfahrkopf äußerst schwierig durchführbar. Eine Formatverstellung ist wegen der starren Verbindung der Wände ausgeschlossen. Die Wärmedämmung der Ecken ist beim Gießen von Dünnbrammen mit hoher Gießgeschwindigkeit nachteilig.By DE-A2 19 06 261 it is in the genus the billet molds are known, 300 - 500 mm below the Casting level in the mold wall to provide corner gaps and this corner column at a distance by thermal insulation Cover wall panels. At this elaborate mold is a final seal through the Starting head extremely difficult to carry out. A format adjustment is because of the rigid connection Walls excluded. The thermal insulation of the Corners are high when pouring thin slabs Casting speed disadvantageous.
Aufgabe der Erfindung ist die Schaffung einer Kokille der angegebenen Gattung, wobei ohne Beeinträchtigung der Formstabilität auf einfache Weise die Bildung von Kantenrissen in der Dünnbramme vermieden wird. Dabei soll eine Verstellung der Schmalseitenwand und eine Abdichtung am unteren Kokillenende möglich sein.The object of the invention is to create a Chill mold of the specified type, with no impairment the dimensional stability in a simple way the formation from edge cracks in the thin slab avoided becomes. An adjustment of the narrow side wall is intended and a seal at the lower end of the mold is possible his.
Diese Aufgabe wird durch die Merkmale des Anspruchs 1 gelöst.This object is solved by the features of
Durch diese Distanzbildung zwischen der Gießstrangseite und den Seitenstreifen der Schmalseitenwände wird auf einfache Weise eine zu starke beidseitige Abkühlung der Gießstrangkanten und damit eine Rißbildung vermieden. Dabei ist eine Abdichtung der Kokille durch den Anfahrkopf am unteren Ende der Kokille und eine Verstellung der Schmalseitenwände zur Formatverstellung sowie zur Einstellung der Konizität möglich.This distance between the casting strand side and the side strips of the narrow side walls easily becomes too strong cooling of the casting strand edges on both sides and thus avoided cracking. There is a seal the mold through the start head at the bottom of the Mold and an adjustment of the narrow side walls for Format adjustment and conicity adjustment possible.
Nach einem weiteren Merkmal der Erfindung besteht die Arbeitsseite jeder Schmalseitenwand aus einem ebenen oberen Abschnitt und einem unteren Abschnitt mit abgesenkten Seitenstreifen.According to a further feature of the invention consists of the working side of each narrow side wall a flat upper section and a lower one Section with lowered side stripes.
Alternativ kann es vorteilhaft sein, daß die Arbeitsseite jeder Schmalseitenwand aus einem oberen Abschnitt mit erhöhten Seitenstreifen und einem ebenen unteren Abschnitt besteht.Alternatively, it may be advantageous for the work side each narrow side wall from an upper one Section with raised side stripes and a flat one lower section.
Die Breite der Seitenstreifen beträgt vorteilhaft maximal 15 mm.The width of the side strips is advantageous maximum 15 mm.
Die Länge der nach außen versetzten Seitenstreifen im unteren Abschnitt der Schmalseitenwand beträgt maximal 400 mm.The length of the outside stripes in the lower section of the narrow side wall maximum 400 mm.
Bei alternativer Ausbildung beträgt die Länge der vorstehenden Seitenstreifen im oberen Abschnitt der Schmalseitenwand mindestens 400 mm.With alternative training, the length is protruding side stripes in the upper section of the Narrow side wall at least 400 mm.
In der Zeichnung sind Ausführungsbeispiele mit Merkmalen und Vorteilen der Erfindung dargestellt. Es zeigen
- Fig. 1
- zwei Teilinnenansichten von Kokillen zum Gießen von Dünnbrammen mit unterschiedlich gestalteten Schmalseitenwänden,
- Fig. 2
- Teildraufsichten der in Fig. 1 dargestellten Kokillen,
- Fig. 3
- einen vergrößerten Querschnitt gemäß der Linie III-III in Fig. 1,
- Fig. 4
- einen vergrößerten Querschnitt gemäß der Linie IV-IV in Fig. 1,
- Fig. 5
- einen vergrößerten Querschnitt gemäß der Linie V-V in Fig. 1,
- Fig. 6
- einen vergrößerten Querschnitt gemäß der Linie VI-VI in Fig. 1,
- Fig. 7
- einen Längsschnitt gemäß der Linie VII-VII in Fig. 1 und
- Fig. 8
- einen Längsschnitt gemäß der Linie VIII-VIII in Fig. 1.
- Fig. 1
- two partial interior views of molds for casting thin slabs with differently designed narrow side walls,
- Fig. 2
- Partial top views of the molds shown in FIG. 1,
- Fig. 3
- 2 shows an enlarged cross section along the line III-III in FIG. 1,
- Fig. 4
- 2 shows an enlarged cross section along the line IV-IV in FIG. 1,
- Fig. 5
- 2 shows an enlarged cross section along the line VV in FIG. 1,
- Fig. 6
- 2 shows an enlarged cross section along the line VI-VI in FIG. 1,
- Fig. 7
- a longitudinal section along the line VII-VII in Fig. 1 and
- Fig. 8
- a longitudinal section along the line VIII-VIII in Fig. 1st
Gemäß den Figuren 1 und 2 besteht eine Kokille
zum Gießen von Dünnbrammen aus zwei Breitseitenwänden
1,2 und zwei seitlich zwischen den Breitseitenwänden
1, 2 verstellbar angeordnete
Schmalseitenwänden 3, 4. Die Breitseitenwände 1, 2
sind im Ausführungsbeispiel oben gewölbt und bilden
einen erweiterten Eingießbereich 5. Die Breitseitenwände
1, 2 und die Schmalseitenwände 3, 4 sind mit
Kühlwasserkanälen 6 versehen.According to Figures 1 and 2 there is a mold
for pouring thin slabs from two
Eine erfindungsgemäße Gestaltung der Arbeitsseite
der Schmalseitenwände 3 gemäß Fig. 1, linke Seite, ist
in den Figuren 3, 5 und 7 verdeutlicht. Danach bestehen
die Schmalseitenwände 3 aus einen oberen Abschnitt
3a mit ebener Arbeitsfläche 3a' und einem unteren
Abschnitt 3b. Im unteren Abschnitt 3b fluchtet ein mittlerer
Streifen 3b' mit der oberen Arbeitsfläche 3a'. Zwei
seitliche Streifen 3b" sind gegenüber dem mittleren
Streifen 3b' vertieft. Ihre Breite ist vorteilhaft geringer als
15 mm. An inventive design of the working side
of the
Hierdurch wird erreicht, daß im oberen Teil 3a an
den gekühlten Wänden 1,2,3a' eine rechteckige Strangschale
7 erstarrt, die bei der Abwärtsbewegung kontinuierlich
dicker wird und bis zum unteren Abschnitt 3b
selbststützende Kanten ausbildet. Auf diese Weise entsteht
an den zurückliegenden Seitenstreifen 3b" je ein
Spalt 8, in dessen Bereich die Kühlung vermindert und
die Bildung von Kantenrissen in der gegossenen Dünnbramme
vermieden werden.This ensures that in the
Eine alternative erfindungsgemäße Gestaltung der
Arbeitsseite der Schmalseitenwand 4 gemäß Fig. 1,
rechte Seite, ist in den Figuren 4, 6 und 8 verdeutlicht.
Danach bestehen die Schmalseitenwände 4 aus einem
oberen Abschnitt 4a und einem unteren Abschnitt 4b.
Der obere Abschnitt 4a weist einen mittleren Streifen 4a'
und zwei vorstehendende Seitenstreifen 4a" auf. Der
untere Abschnitt 4b bildet eine mit dem mittleren Streifen
4a' des oberen Abschnitts fluchtende, insgesamt ebene
Arbeitsfläche 4b' Hierbei erstarrt an den Arbeitsflächen
4a', 4a" des oberen Abschnittes 4a der Schmalseitenwand
4 die in Fig. 4 dargestellte Strangschale 9 mit
zurückliegenden Seitenstreifen 9a. Diese bilden, aufgrund
der bei fortschreitender Erstarrung wirkenden
Selbststützung mit der ebenen Arbeitsfläche 4b' des
unteren Abschnitts 4b Spalte 10, durch welche die Kühlung
vermindert und Kantenrisse in der gegossenen
Dünnbramme vermieden werden.An alternative design of the
Working side of the
Claims (6)
- Continuous casting chill mould for the casting of thin slabs, with cooled, wide side walls and cooled narrow side walls adjustably arranged therebetween, which form an upper mould part with a widened pouring-in region (5) and a lower support part, characterised thereby that the narrow side walls (3, 4) in the mould part and support part have different side strips at the inner working side and the side strips (3b" or 4b") in the support part (3b or 4b) are displaced outwardly relative to the side strips (3a' or 4a") of the mould part (3a or 4a) for formation of a spacing between cast strip and narrow side wall.
- Continuous casting chill mould according to claim 1, characterised thereby that the working side of each narrow side wall (3) consists of a flat upper portion (3a') and a lower portion (3b) with lowered side strips (3b").
- Continuous casting chill mould according to claim 1, characterised thereby that the working side of each narrow side wall (4) consists of an upper portion (4a) with elevated side strips (4a") and a flat lower portion (4b').
- Continuous casting chill mould according to claim 1, characterised thereby that the width of the side strips (3b", 4a") amounts to at most 15 millimetres.
- Continuous casting chill mould according to claims 1 and 2, characterised thereby that the length of the outwardly displaced side strips (3b") in the lower section (3b) of the narrow side wall (3) amounts to at most 400 millimetres.
- Continuous casting chill mould according to claims 1 and 2, characterised thereby that the length of the protruding side strips (4a") in the upper portion (4a) of the narrow side wall (4) amounts to at least 400 millimetres.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE4322948 | 1993-07-09 | ||
DE4322948A DE4322948A1 (en) | 1993-07-09 | 1993-07-09 | Continuous casting mold for casting thin slabs |
Publications (4)
Publication Number | Publication Date |
---|---|
EP0633080A2 EP0633080A2 (en) | 1995-01-11 |
EP0633080A3 EP0633080A3 (en) | 1995-04-26 |
EP0633080B1 EP0633080B1 (en) | 1996-05-15 |
EP0633080B2 true EP0633080B2 (en) | 2002-09-04 |
Family
ID=6492377
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP94110511A Expired - Lifetime EP0633080B2 (en) | 1993-07-09 | 1994-07-06 | Continuous casting mould for casting thin slabs |
Country Status (7)
Country | Link |
---|---|
US (1) | US5503216A (en) |
EP (1) | EP0633080B2 (en) |
JP (1) | JP3337321B2 (en) |
KR (1) | KR960013518A (en) |
AT (1) | ATE138000T1 (en) |
CA (1) | CA2127639A1 (en) |
DE (2) | DE4322948A1 (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100362255B1 (en) * | 2000-06-09 | 2002-11-29 | 이현빈 | Apparatus for supplying doggy meal |
KR20030073158A (en) * | 2002-03-08 | 2003-09-19 | 조상균 | automatic grains provider for a pet |
KR100470454B1 (en) * | 2002-05-14 | 2005-02-05 | 대한민국 | Auto-control feeder to provide feed of pigs |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR1443574A (en) * | 1965-07-16 | 1966-06-24 | Schloemann Ag | Cooled ingot mold for continuous casting |
US3520352A (en) * | 1967-10-19 | 1970-07-14 | Koppers Co Inc | Continuous casting mold having insulated portions |
AT289317B (en) * | 1968-02-09 | 1971-04-13 | Tsnii Chernoi Metallurg Im Bar | Mold for forming strands with a rectangular cross-section in metal continuous casting |
FR1586213A (en) * | 1968-09-17 | 1970-02-13 | ||
US4023612A (en) * | 1975-11-25 | 1977-05-17 | Inland Steel Company | Continuous casting mold and process of casting |
DE4131829C2 (en) * | 1990-10-02 | 1993-10-21 | Mannesmann Ag | Liquid-cooled mold for the continuous casting of steel strands in slab format |
-
1993
- 1993-07-09 DE DE4322948A patent/DE4322948A1/en not_active Withdrawn
-
1994
- 1994-07-06 DE DE59400276T patent/DE59400276D1/en not_active Expired - Lifetime
- 1994-07-06 JP JP15499494A patent/JP3337321B2/en not_active Expired - Fee Related
- 1994-07-06 AT AT94110511T patent/ATE138000T1/en not_active IP Right Cessation
- 1994-07-06 EP EP94110511A patent/EP0633080B2/en not_active Expired - Lifetime
- 1994-07-08 US US08/272,199 patent/US5503216A/en not_active Expired - Fee Related
- 1994-07-08 KR KR1019940016449A patent/KR960013518A/en not_active Application Discontinuation
- 1994-07-08 CA CA002127639A patent/CA2127639A1/en not_active Abandoned
Also Published As
Publication number | Publication date |
---|---|
CA2127639A1 (en) | 1995-01-10 |
JPH07144257A (en) | 1995-06-06 |
EP0633080A3 (en) | 1995-04-26 |
EP0633080B1 (en) | 1996-05-15 |
US5503216A (en) | 1996-04-02 |
JP3337321B2 (en) | 2002-10-21 |
DE4322948A1 (en) | 1995-01-12 |
KR960013518A (en) | 1996-05-22 |
EP0633080A2 (en) | 1995-01-11 |
DE59400276D1 (en) | 1996-06-20 |
ATE138000T1 (en) | 1996-06-15 |
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