DE4134159C1 - Continuous casting process of steel, for redn. of scrap - comprises pouring molten steel into open-ended mould to produce strand, then reducing cross=section - Google Patents
Continuous casting process of steel, for redn. of scrap - comprises pouring molten steel into open-ended mould to produce strand, then reducing cross=sectionInfo
- Publication number
- DE4134159C1 DE4134159C1 DE19914134159 DE4134159A DE4134159C1 DE 4134159 C1 DE4134159 C1 DE 4134159C1 DE 19914134159 DE19914134159 DE 19914134159 DE 4134159 A DE4134159 A DE 4134159A DE 4134159 C1 DE4134159 C1 DE 4134159C1
- Authority
- DE
- Germany
- Prior art keywords
- continuous casting
- strand
- steel
- casting mold
- open
- 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 - Fee Related
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
- B22D11/10—Supplying or treating molten metal
- B22D11/11—Treating the molten metal
- B22D11/112—Treating the molten metal by accelerated cooling
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Continuous Casting (AREA)
- Metal Rolling (AREA)
Abstract
Description
Die Erfindung bezieht sich auf ein Verfahren zum Stranggießen von Stahl in eine flüssigkeitsgekühlte, oben und unten offene Stranggießkokille, bei dem der so erzeugte Strang im Anschluß an die Stranggießkokille im Bereich der Erstarrungsstrecke vor dem Punkt der Durcherstarrung unter Verminderung seiner Querschnittsfläche verformt wird.The invention relates to a method for the continuous casting of steel in a liquid-cooled continuous casting mold open at the top and bottom, in which the strand thus produced following the continuous casting mold in Area of the solidification section before the point of solidification below Reducing its cross-sectional area is deformed.
Ein derartiges Verfahren ist für Flachprodukte, beispielsweise aus der DE 38 18 077 A1, bekannt. Bei derartigen Verfahren, insbesondere bei einer bogenförmigen Strangführung unmittelbar im Anschluß an die Stranggießkokille, ist bei jedem Gießende mit einem durch Gießwalzen unvollständig verformten Stück in der Mindestlänge der Verformungsstrecke zu rechnen, da sonst der flüssige Stahl aus dem Stranginneren infolge der Verformung zum offenen Strangende herausgequetscht werden und sich bei der vorgegebenen Geschwindigkeit über die Rollenbahn ergießen würde. Das Gießwalzgerüst mußte daher spätestens mit Schließen des Verteilerstopfens auf eine Maulweite entsprechend der Strangdicke am Kokillenaustritt auseinandergefahren werden, so daß es nur noch die Funktion eines Strangführungsgerüstes hat. Die Dicke des so entstandenen Endstückes entspricht daher nicht mehr dem für die Weiterverarbeitung vorgesehenen Strangmaß.Such a method is for flat products, for example from the DE 38 18 077 A1, known. In such methods, especially in an arcuate strand guide immediately following the Continuous casting mold, is at each end of casting with one by casting rolls incompletely deformed piece in the minimum length of the Deformation distance to be expected, otherwise the liquid steel from the Inside of the strand due to the deformation towards the open end of the strand be squeezed out and at the given speed would pour over the roller conveyor. The casting and rolling stand therefore had to at the latest when the distributor plug is closed to an internal width according to the strand thickness at the mold exit be, so that it only functions as a strand guide Has. The thickness of the end piece thus created does not correspond more the strand size intended for further processing.
Der Erfindung liegt die Aufgabe zugrunde, die bestehenden Nachteile zu vermeiden und ein Verfahren anzugeben, daß ein im Stranggießverfahren erzeugter Strang weitestgehend der Weiterverarbeitung zugeführt werden kann.The invention has for its object to overcome the existing disadvantages avoid and specify a process that a continuous casting process generated strand are largely fed to further processing can.
Bei einem Verfahren der im Gattungsbegriff des Anspruches 1 genannten Art wird die Aufgabe erfindungsgemäß durch die Maßnahmen des kennzeichnenden Teils des Anspruches 1 gelöst. Spezifikationen der Erfindung enthalten die Unteransprüche.In a method mentioned in the preamble of claim 1 Art is the task according to the invention by the measures of characterizing part of claim 1 solved. Specifications of the Invention contain the dependent claims.
Gemäß der Erfindung wird also bei Gießende in die Stranggießkokille eine temperaturbeständige, vorzugsweise metallische, rohrförmige, dem Strangformat angepaßte Hülse eingesetzt und derart in das offene Ende (Gießkopf) des Stranges eingepreßt, daß eine Kante der Hülse mit der Strangschale verschweißt. Das bislang gegossene und noch in der Stranggießmaschine befindliche Material kann jetzt weiterhin gießgewalzt werden, wobei sich das dadurch herausgedrückte flüssige Metall in der Hülse sammelt. Die aus einem Stahlblech gefertigte Hülse besteht bevorzugt aus einem artgleichen Werkstoff wie die zu vergießende Schmelze.According to the invention, therefore, at the end of the casting in the continuous casting mold temperature-resistant, preferably metallic, tubular, the Strand-adapted sleeve inserted and so in the open end (Casting head) of the strand pressed in that one edge of the sleeve with the Strand shell welded. The previously cast and still in the Continuous caster material can now continue to be cast rolled be, whereby the liquid metal thereby pressed out in the Sleeve collects. The sleeve is made of sheet steel preferably made of a material of the same type as the material to be cast Melt.
Die Vorteile vorliegender Erfindung sind darin zu sehen, daß das bisher verdickte Strangende nicht mehr als Schrott abqualifiziert werden muß, sondern störungsfrei in einen unmittelbar folgenden Weiterverarbeitungsprozeß eingeführt werden kann. Auch wird vermieden, daß sich evtl. aus dem Gießkopf herausgedrücktes Material über die Verformungs- bzw. Führungsrollen ergießt und Anlagenstillstände verursacht. Das Verfahren ist sowohl für Stränge mit rechteckigem als auch rundem oder polygonalem Querschnitt anwendbar.The advantages of the present invention can be seen in the fact that so far thickened strand ends no longer have to be classified as scrap, but trouble-free in an immediately following one Processing process can be introduced. Is also avoided that material that may have been pushed out of the pouring head over the Deformation or leadership roles pour and plant downtime caused. The procedure is for both strands with rectangular as also round or polygonal cross section applicable.
Claims (3)
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19914134159 DE4134159C1 (en) | 1991-10-11 | 1991-10-11 | Continuous casting process of steel, for redn. of scrap - comprises pouring molten steel into open-ended mould to produce strand, then reducing cross=section |
JP29804592A JPH05200502A (en) | 1991-10-11 | 1992-10-09 | Method to cast steel continuously |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19914134159 DE4134159C1 (en) | 1991-10-11 | 1991-10-11 | Continuous casting process of steel, for redn. of scrap - comprises pouring molten steel into open-ended mould to produce strand, then reducing cross=section |
Publications (1)
Publication Number | Publication Date |
---|---|
DE4134159C1 true DE4134159C1 (en) | 1992-12-17 |
Family
ID=6442749
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE19914134159 Expired - Fee Related DE4134159C1 (en) | 1991-10-11 | 1991-10-11 | Continuous casting process of steel, for redn. of scrap - comprises pouring molten steel into open-ended mould to produce strand, then reducing cross=section |
Country Status (2)
Country | Link |
---|---|
JP (1) | JPH05200502A (en) |
DE (1) | DE4134159C1 (en) |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3818077A1 (en) * | 1988-05-25 | 1989-11-30 | Mannesmann Ag | METHOD FOR CONTINUOUS CASTING ROLLERS |
-
1991
- 1991-10-11 DE DE19914134159 patent/DE4134159C1/en not_active Expired - Fee Related
-
1992
- 1992-10-09 JP JP29804592A patent/JPH05200502A/en active Pending
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3818077A1 (en) * | 1988-05-25 | 1989-11-30 | Mannesmann Ag | METHOD FOR CONTINUOUS CASTING ROLLERS |
Also Published As
Publication number | Publication date |
---|---|
JPH05200502A (en) | 1993-08-10 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8100 | Publication of the examined application without publication of unexamined application | ||
D1 | Grant (no unexamined application published) patent law 81 | ||
8364 | No opposition during term of opposition | ||
8339 | Ceased/non-payment of the annual fee |