DE223378C - - Google Patents

Info

Publication number
DE223378C
DE223378C DENDAT223378D DE223378DA DE223378C DE 223378 C DE223378 C DE 223378C DE NDAT223378 D DENDAT223378 D DE NDAT223378D DE 223378D A DE223378D A DE 223378DA DE 223378 C DE223378 C DE 223378C
Authority
DE
Germany
Prior art keywords
steel
temperature
pouring
tundish
pieces
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.)
Active
Application number
DENDAT223378D
Other languages
German (de)
Publication of DE223378C publication Critical patent/DE223378C/de
Active legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B22CASTING; POWDER METALLURGY
    • B22DCASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D35/00Equipment for conveying molten metal into beds or moulds
    • B22D35/06Heating or cooling equipment
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B22CASTING; POWDER METALLURGY
    • B22DCASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D27/00Treating the metal in the mould while it is molten or ductile ; Pressure or vacuum casting
    • B22D27/04Influencing the temperature of the metal, e.g. by heating or cooling the mould
    • CCHEMISTRY; METALLURGY
    • C21METALLURGY OF IRON
    • C21CPROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
    • C21C7/00Treating molten ferrous alloys, e.g. steel, not covered by groups C21C1/00 - C21C5/00
    • C21C7/04Removing impurities by adding a treating agent
    • C21C7/06Deoxidising, e.g. killing

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Continuous Casting (AREA)

Description

KAISERLICHESIMPERIAL

PATENTAMT.PATENT OFFICE.

Es ist bekannt, daß die Güte des Flußeisens oder Stahles unter anderem auch von einem Vergießen bei möglichst niedriger Temperatur abhängt; anderenfalls können verschiedene Erscheinungen auftreten, wie z. B. Längs- und Querrisse auf der Blockoberfläche, Hohlräume in dem Blockinneren. Um die Temperatur des Stahles zu vermindern, werden verschiedene Mittel angewendet,
ίο i. Temperaturverminderung in der Pfanne,
It is known that the quality of the fluent iron or steel depends, among other things, on being cast at the lowest possible temperature; otherwise, various phenomena can occur, such as B. Longitudinal and transverse cracks on the block surface, cavities in the block interior. Various means are used to reduce the temperature of the steel:
ίο i. Temperature reduction in the pan,

2. Temperaturverminderung außerhalb der Pfanne.2. Decrease in temperature outside the pan.

Die Temperaturverminderung in der PfanneThe decrease in temperature in the pan

»selbst durch Hinzufügen von Kühlschrott, wie Schienenenden usw., ist bisher die allgemein übliche. Doch führt sie nicht immer zu dem gewünschten Erfolg, da leicht ein Unterkühlen der ganzen Masse stattfindet und dadurch ein Versagen des Gießstopfens, was stets mit großen Verlusten und Gefahren für die Arbeiter verbunden ist. Um die Temperatur • des Pfanneninhaltes außerhalb der Gießpfanne zu vermindern, wird — wie bekannt — z. B. bei von oben zu gießenden Blöcken zwischen Gießpfanne und Blockform der sogenannte Gießtrichter oder die Gießwanne geschaltet.»Even by adding refrigerated scrap, such as rail ends, etc., this is so far general usual. However, it does not always lead to the desired success, since it is easy to overcool of the whole mass takes place and thereby a failure of the pouring plug, which is always with associated with great losses and dangers for the workers. About the temperature • to reduce the contents of the ladle outside the ladle, is - as is known - z. B. in the case of blocks to be poured from above, the so-called pouring funnel between the pouring ladle and the block mold or the tundish switched.

Eine möglichst weitergehende, betriebssichere Temperaturerniedrigung des Stahles unmittelbar vor seinem Eintritt in die Blockform wird nach der Erfindung dadurch erzielt, daß während des Durchfließens des Stahles durch den Gießtrichter Stahlstückchen mit oxydfreier Oberfläche in einer der Temperatur des Stahles entsprechenden Menge, von derselben oder einer ähnlichen Beschaffenheit, dem Inhalt der Gießj wanne zugeführt werden, und zwar in dem Maße, daß ein Vergießen des Stahles noch stattfinden kann, der flüssige Inhalt der Gießwanne jedoch nicht zur Erstarrung kommt. Diese Stahlstückchen werden bei dem Eintritt in die Gieß wanne geschmolzen, entziehen dem flüssigen Metall die überschüssige Wärme und befördern dadurch die Entgasung des Stahles. Der Stahl tritt in die Form mit einer Temperatur, die nicht wesentlich über seiner Erstarrungstemperatur liegt, und erstarrt ohne Bildung von Längs- und Querrissen.A more extensive, operationally reliable temperature reduction of the steel immediately before its entry into the block form is achieved according to the invention that during the flowing of the steel through the pouring funnel steel pieces with oxide-free Surface in an amount corresponding to the temperature of the steel, of the same or one Similar texture, the contents of the Gießj tub are supplied, in that Measure that a pouring of the steel can still take place, the liquid contents of the tundish but does not solidify. These pieces of steel are at the entrance melted in the tundish, the excess heat and withdraw from the liquid metal thereby promote the degassing of the steel. The steel enters the mold at a temperature which is not significantly above its solidification temperature, and solidifies without Formation of longitudinal and transverse cracks.

Das Verfahren findet besonders bei dem Vergießen von Stahl aus dem elektrischen Ofen Anwendung.The process takes place particularly in the casting of steel from the electrical Oven application.

Claims (1)

Patent-Anspruch:Patent claim: Verfahren zum Vergießen von Stahl unter Verminderung seiner Temperatur in dem Gießtrichter oder der Gießwänne, dadurch gekennzeichnet, daß Stahlstückchen gleicher oder ähnlicher Beschaffenheit während des Durchfließens durch den Gießtrichter hinzugefügt werden.Method of casting steel by reducing its temperature in the pouring funnel or the pouring trough, characterized in that pieces of steel same or similar quality while flowing through the pouring funnel to be added.
DENDAT223378D Active DE223378C (en)

Publications (1)

Publication Number Publication Date
DE223378C true DE223378C (en)

Family

ID=484200

Family Applications (1)

Application Number Title Priority Date Filing Date
DENDAT223378D Active DE223378C (en)

Country Status (1)

Country Link
DE (1) DE223378C (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5240492A (en) * 1991-04-25 1993-08-31 Foseco International Limited Metallurgical fluxes
US5538070A (en) * 1993-08-26 1996-07-23 Foseco International Limited Mould fluxes and their use in the continuous casting of steel

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5240492A (en) * 1991-04-25 1993-08-31 Foseco International Limited Metallurgical fluxes
US5538070A (en) * 1993-08-26 1996-07-23 Foseco International Limited Mould fluxes and their use in the continuous casting of steel

Similar Documents

Publication Publication Date Title
DE223378C (en)
DE3200104C2 (en) Casting device for the production of alloyed metal castings
DE2147678A1 (en) Device for potting in the rising casting or middle casting and process for their manufacture
EP1877209B9 (en) Method for the production of pigs, and pigs
DE1965784A1 (en) Process for applying casting powder in continuous casting
DE862346C (en) Process for the production of composite workpieces from mild iron and steel
DE218403C (en)
DE3306186C2 (en) Method and device for casting in horizontal continuous casting
DE127930C (en)
DE2251522A1 (en) Casting metals with addition of solid metal particles - to effect inner cooling and prevent segregation
DE4313836A1 (en) Casting process and casting mould
DE1954763A1 (en) Operating an inductor with ingot mould
DE722826C (en) Process for the production of metals, alloys or cast bodies by melting metal compacts
DE2807844C2 (en) Method of electro-slag casting of metal blocks
DE1931206A1 (en) Method and device for the continuous casting of metal
DE1433639A1 (en) Plant and process for the production of spheroidal graphite cast iron
AT266358B (en) Method of casting metal blocks
DE355882C (en) Process for casting shaped steel blocks in horizontal molds
DE412396C (en) Process for the production of moldings from molten material of all kinds
AT250594B (en) Process for the production of blocks from composite cast steel by core alloying
DE892229C (en) Process for the continuous casting of blocks or bars made of steel or iron
AT42893B (en) Attachment made of clay protruding into the block form and a method for casting void-free blocks.
DE867150C (en) Bottom piece for continuous casting
DE1965784C (en) Process for applying casting powders in the continuous casting of steel
AT142856B (en) Process for the production of clad semi-finished goods.