DE1281115B - Process for the continuous casting of hollow bodies - Google Patents

Process for the continuous casting of hollow bodies

Info

Publication number
DE1281115B
DE1281115B DEB89564A DEB0089564A DE1281115B DE 1281115 B DE1281115 B DE 1281115B DE B89564 A DEB89564 A DE B89564A DE B0089564 A DEB0089564 A DE B0089564A DE 1281115 B DE1281115 B DE 1281115B
Authority
DE
Germany
Prior art keywords
continuous casting
hollow bodies
strand
hollow
arc
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.)
Pending
Application number
DEB89564A
Other languages
German (de)
Inventor
Dipl-Ing Werner Poppmeier
Dipl-Ing Dr Mont Bruno Tarmann
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.)
Gebrueder Boehler and Co AG
Original Assignee
Gebrueder Boehler and Co 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.)
Filing date
Publication date
Application filed by Gebrueder Boehler and Co AG filed Critical Gebrueder Boehler and Co AG
Publication of DE1281115B publication Critical patent/DE1281115B/en
Pending legal-status Critical Current

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
    • B22D11/006—Continuous casting of metals, i.e. casting in indefinite lengths of tubes

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Continuous Casting (AREA)

Description

BUNDESREPUBLIK DEUTSCHLAND DEUTSCHES -0507WW PATENTAMT FEDERAL REPUBLIC OF GERMANY GERMAN -0507WW PATENT OFFICE

AUSLEGESCHRIFTEDITORIAL

Int. α.:Int. α .:

B22dB22d

Deutsche Kl.: 31 b2 -11/00 German class: 31 b2 - 11/00

Nummer: Aktenzeichen:
Anmeldetag:
Auslegetag: Number: Case number:
Registration date:
Display day:

P 12 81 115.3-24 (B 89564)P 12 81 115.3-24 (B 89564)

26. Oktober 1966October 26, 1966

24. Oktober 1968October 24, 1968

Gegenstand der Hauptpatentanmeldung B 79877 VIa/31 b2 (deutsche Auslegeschrift 1263 993) ist ein Verfahren zum Stranggießen von Hohlkörpern, insbesondere von Rohrluppen, mit Hilfe einer ungefähr senkrecht angeordneten Stranggießkokille, wobei in S bekannter Weise wie beim Gießen voller Stränge flüssige Schmelze dem oberen Ende der Stranggießkokille zugeführt wird und der aus der Kokille austretende Strang entlang einer zunächst fallenden und hierauf ansteigenden Kurvenbahn bis zu einer Höhe geführt wird, in der ein weiteres Ansteigen des flüssigen Teiles des Stranges nicht mehr erfolgen kann, so daß beim Weitergießen bzw. Weiterfördern des Stranges das flüssige Metall im Inneren desselben nur bis zur genannten Höhe reicht und der darüber hinaussteigende Strang hohl ist. Vorzugsweise kann hierfür eine Kreisbogenkokille verwendet und der Strang entlang eines Kreisbogens bis über die Höhe des Gießspiegels geführt werden, worauf er entweder in die Horizontale gebogen oder auch im Aufwärtsgang unterteilt wird.The subject of the main patent application B 79877 VIa / 31 b 2 (German Auslegeschrift 1263 993) is a method for the continuous casting of hollow bodies, in particular tubular blanks, with the help of an approximately vertically arranged continuous casting mold, where in a known way as when casting full strands of liquid melt the upper The end of the continuous casting mold is fed and the strand emerging from the mold is guided along an initially falling and then rising curved path to a height at which the liquid part of the strand can no longer rise further, so that when the casting continues or the further conveyance is carried out Strand, the liquid metal inside it only extends up to the height mentioned and the strand rising beyond it is hollow. A circular-arc mold can preferably be used for this and the strand can be guided along an arc to above the level of the meniscus, whereupon it is either bent horizontally or also divided upwards.

In weiterer Ausbildung dieses Verfahrens wird vorgeschlagen, den Kreisbogen gemäß Zeichnung mit ungefähr 270° zu bemessen und den Strang erst nach Durchlaufen dieses Bogens gerade zu richten und in ungefähr horizontaler Richtung abzuführen. Es hat sich nämlich herausgestellt, daß einerseits das Trennen des Hohlstranges im Aufwärtsgang mit gewissen Schwierigkeiten verbunden ist und andererseits das Aufbringen einer Biegebeanspruchung die innere Oberfläche des Hohlstranges ungünstig beeinflußt, wenn die Biegebeanspruchung dort aufgebracht ist, wo die Temperatur der inneren Oberfläche nahezu der Erstarrungstemperatur entspricht.In a further development of this method, it is proposed to use the circular arc as shown in the drawing to measure about 270 ° and to straighten the strand only after passing through this arc and in discharge in an approximately horizontal direction. It has been found that on the one hand the separation of the hollow cord is associated with certain difficulties in upward gear and, on the other hand, that Applying a bending load adversely affects the inner surface of the hollow strand, when the bending stress is applied where the temperature of the inner surface is close to corresponds to the solidification temperature.

Claims (1)

Patentanspruch:Claim: Verfahren zum Stranggießen von Hohlkörpern, insbesondere von Rohrluppen, nach Patentanmel-Process for the continuous casting of hollow bodies, in particular tube blanks, according to patent application Verfahren zum Stranggießen von HohlkörpernProcess for the continuous casting of hollow bodies Zusatz zur Anmeldung: B 79877 VI a/31 b 2 —
Auslegeschrift 1 263 993Addition to registration: B 79877 VI a / 31 b 2 -
Interpretation document 1 263 993
DEB89564A 1965-11-04 1966-10-26 Process for the continuous casting of hollow bodies Pending DE1281115B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AT1281115X 1965-11-04

Publications (1)

Publication Number Publication Date
DE1281115B true DE1281115B (en) 1968-10-24

Family

ID=3688063

Family Applications (1)

Application Number Title Priority Date Filing Date
DEB89564A Pending DE1281115B (en) 1965-11-04 1966-10-26 Process for the continuous casting of hollow bodies

Country Status (1)

Country Link
DE (1) DE1281115B (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3743005A (en) * 1970-09-22 1973-07-03 Voest Ag Process for producing hot rolled three layer steel products from continuously cast hollow tubes
DE3247002C1 (en) 1982-12-18 1983-12-22 Mannesmann AG, 4000 Düsseldorf Method and device for casting thin steel strands during continuous casting

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3743005A (en) * 1970-09-22 1973-07-03 Voest Ag Process for producing hot rolled three layer steel products from continuously cast hollow tubes
DE3247002C1 (en) 1982-12-18 1983-12-22 Mannesmann AG, 4000 Düsseldorf Method and device for casting thin steel strands during continuous casting

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