AT68713B - Method and casting mold for compacting cast, not yet solidified steel or other metal blocks. - Google Patents

Method and casting mold for compacting cast, not yet solidified steel or other metal blocks.

Info

Publication number
AT68713B
AT68713B AT68713DA AT68713B AT 68713 B AT68713 B AT 68713B AT 68713D A AT68713D A AT 68713DA AT 68713 B AT68713 B AT 68713B
Authority
AT
Austria
Prior art keywords
casting mold
block
metal blocks
solidified steel
cast
Prior art date
Application number
Other languages
German (de)
Inventor
Barthold Gerdau
Original Assignee
Barthold Gerdau
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.)
Filing date
Publication date
Application filed by Barthold Gerdau filed Critical Barthold Gerdau
Application granted granted Critical
Publication of AT68713B publication Critical patent/AT68713B/en

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  • Continuous Casting (AREA)

Description

  

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 bei der Verschiebung der Form   drehen. Die Wirkung der Pressung   in der   Längsrichtung des   Blockes erfolgt unmittelbar durch einen   besonderen hydraulischen Stempel'-, der etwa   in einem besonderen Zylinder q oder dgl. beweglich ist. Dadurch wird   der verjüngte Block a   in die innen entsprechend verjüngte Giessform b   hineingsstfiben.   



   Das Fortschreiten der Geschwindigkeiten der Pressungen in der Quer-oder   Längsrichtung   bzw. der Geschwindigkeiten der diese vermittelnden Bewegungen wird bei der gezeichneten Ausführungsform durch einen Treibkolben   geregelt,   dem von einem Motor z vermittelst mehrfacher Schraubengetriebe jede beliebige Übersetzung und entsprechend langsame oder raschere Bewegung gegeben werden kann. Durch die in die Zuleitung eingeschalteten Regelventile 1 und 2 oder dgl. lassen sich auch die Geschwindigkeiten der Kolben o   und n gegeneinander ändern.   



   Zur Ergänzung der Wirkung in bezug auf Vermeidung von Lunkerbildungen dient bei der dargestellten Ausführungsform ein gasbrenner, welcher mit dem   Gaszuleitungsrohr   beweglich angeordnet ist, so dass er über die   Giessform   gebracht und später zur Seite bewegt werden kann. Nach erfolgtem Einguss des Blockes a wird von der Giessform b durch den   Brenner   c dem Kopf des gegossenen Blockes a Warme zugeführt und eine Nacherhitzung des Kopfes zur Erleichterung des Hochsteigens der leichten   Schlackenteile usw.   im Block   herbeigeführt.   Die Pressung des Blockes a in der   Quer-und Längsrichtung kann gleichzeitig   eingeleitet werden. 



     Ist nach verhältnismässig   kurzer Zeit das Aufsteigen der Schlackenteile im Block a beendet, so kann die Nacherhitzung durch Entfernen des Brenners c eingestellt werden. Die innere Verdichtung des Blockes   a   wird durch weitere Pressungen auf Um unter Einwirkung der Stempel o und n fortgesetzt. Die Herstellung von   Hohlblöcken   kann dadurch erfolgen, dass ein verjüngender 
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 auch der Dorn 5 oberhalb der   Giessform   b entfernt werden kann, um die Form frei für das Eingiessen des flüssigen Stahles für den Block a aus einer oberhalb derselben bewegten   Giesspfanne   zu erhalten. Der Dorn 5 kann bei   fortschreitendem   Erkalten des Blockes allmählich aus dem Block a herausgezogen werden. 



   Den erkalteten Block a kann man dadurch aus der Giessform herausbringen, dass der nach 
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 rotate when moving the shape. The effect of the pressure in the longitudinal direction of the block takes place directly through a special hydraulic ram, which can be moved in a special cylinder q or the like. As a result, the tapered block a is inserted into the internally tapered casting mold b.



   The progression of the speeds of the pressings in the transverse or longitudinal direction or the speeds of the movements mediating them is regulated in the embodiment shown by a driving piston to which any desired translation and correspondingly slower or faster movement can be given by a motor by means of multiple screw gears . The speeds of the pistons o and n can also be changed in relation to one another by means of the control valves 1 and 2 or the like that are switched on in the supply line.



   In the embodiment shown, a gas burner, which is movably arranged with the gas supply pipe, so that it can be brought over the casting mold and later moved to the side, serves to supplement the effect in terms of avoiding the formation of cavities. After the block a has been poured in, heat is supplied from the casting mold b through the burner c to the head of the cast block a and the head is reheated to make it easier for the light slag pieces etc. to rise in the block. The pressing of the block a in the transverse and longitudinal directions can be initiated simultaneously.



     If the rising of the slag parts in block a has ended after a relatively short time, the post-heating can be stopped by removing the burner c. The internal compression of the block a is continued by further pressing on Um under the action of the punches o and n. The manufacture of hollow blocks can be done by making a tapering
 EMI2.1
 the mandrel 5 above the casting mold b can also be removed in order to obtain the mold free for pouring the liquid steel for the block a from a casting ladle moved above the same. The mandrel 5 can gradually be pulled out of the block a as the block cools down.



   The cooled block a can be brought out of the mold by following the
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AT68713D 1912-09-20 1912-09-20 Method and casting mold for compacting cast, not yet solidified steel or other metal blocks. AT68713B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AT68713T 1912-09-20

Publications (1)

Publication Number Publication Date
AT68713B true AT68713B (en) 1915-05-10

Family

ID=3590607

Family Applications (1)

Application Number Title Priority Date Filing Date
AT68713D AT68713B (en) 1912-09-20 1912-09-20 Method and casting mold for compacting cast, not yet solidified steel or other metal blocks.

Country Status (1)

Country Link
AT (1) AT68713B (en)

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