EP0023034B1 - Procédé pour le recalibrage d'un tube de lingotière conique usé, en particulier pour une lingotière courbe de coulée continue - Google Patents

Procédé pour le recalibrage d'un tube de lingotière conique usé, en particulier pour une lingotière courbe de coulée continue Download PDF

Info

Publication number
EP0023034B1
EP0023034B1 EP80104173A EP80104173A EP0023034B1 EP 0023034 B1 EP0023034 B1 EP 0023034B1 EP 80104173 A EP80104173 A EP 80104173A EP 80104173 A EP80104173 A EP 80104173A EP 0023034 B1 EP0023034 B1 EP 0023034B1
Authority
EP
European Patent Office
Prior art keywords
mold
tube
mandrel
explosive
strand
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
Application number
EP80104173A
Other languages
German (de)
English (en)
Other versions
EP0023034A1 (fr
Inventor
Diethelm Mettler
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.)
Accumold AG
Original Assignee
Accumold 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 Accumold AG filed Critical Accumold AG
Priority to AT80104173T priority Critical patent/ATE2654T1/de
Publication of EP0023034A1 publication Critical patent/EP0023034A1/fr
Application granted granted Critical
Publication of EP0023034B1 publication Critical patent/EP0023034B1/fr
Expired legal-status Critical Current

Links

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
    • B22D11/057—Manufacturing or calibrating the moulds
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D26/00—Shaping without cutting otherwise than using rigid devices or tools or yieldable or resilient pads, i.e. applying fluid pressure or magnetic forces
    • B21D26/02—Shaping without cutting otherwise than using rigid devices or tools or yieldable or resilient pads, i.e. applying fluid pressure or magnetic forces by applying fluid pressure
    • B21D26/06—Shaping without cutting otherwise than using rigid devices or tools or yieldable or resilient pads, i.e. applying fluid pressure or magnetic forces by applying fluid pressure by shock waves
    • B21D26/08—Shaping without cutting otherwise than using rigid devices or tools or yieldable or resilient pads, i.e. applying fluid pressure or magnetic forces by applying fluid pressure by shock waves generated by explosives, e.g. chemical explosives
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49718—Repairing
    • Y10T29/49748—Repairing by shaping, e.g., bending, extruding, turning, etc.
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49805—Shaping by direct application of fluent pressure
    • Y10T29/49806—Explosively shaping

Definitions

  • the invention relates to a method for recalibrating a worn, conical, in particular bent, mold tube for continuous casting, a caliber mandrel being introduced into the mold cavity, explosive attached to the outside of the tube and the mold cavity being deformed by its detonation to the dimensions of the caliber mandrel (DE-B- 2 533 528).
  • continuous molds with a straight or curved shape are used.
  • the walls of these molds forming the mold cavity are made of copper or copper alloys.
  • the walls of these molds forming the mold cavity are made of copper or copper alloys.
  • they are usually made of pipes.
  • the majority of the tubular molds is provided with a taper towards the withdrawal side of the strand.
  • the molds are exposed to particular wear and tear, causing damage to the mold surface, e.g. B. large-scale measurements and often deep cracks, especially in pipes with high numbers of castings.
  • the cross section of the original strand exit side of the mold is widened to make it easier to insert the mandrel.
  • This is conveniently done by explosive deformation, advantageously explosive charges being detonated in the four corner areas of the mold cavity and at the same time essentially in the central areas of the outside of the mold tube.
  • the caliber mandrel By widening the tube end with a smaller cross section before recalibration, the caliber mandrel can be inserted easily even in the case of mold tubes that are very strongly drawn in the bath level area. By attaching the explosive charges, a uniform cross-sectional enlargement is achieved on all sides. As a result, mold tubes, which due to the described indentations and the associated intolerable changes in conicity could no longer be used or renewed, are also recalibrated and thus used again.
  • the caliber mandrel 2 is introduced in the direction of the arrow 7, the tube part 10 shown in broken lines being expanded further in accordance with the shape of the caliber mandrel 2.
  • the deformation imposed on the tubular part 10 in this way is partly plastic, partly elastic.
  • an air gap 11 is created due to the conicity oriented towards each other, which can be up to a few millimeters depending on the shape of the caliber mandrel 2.
  • the ends of the mold tube are then closed by means of base plates (not shown), 12 explosive charges are attached to the outside of the tube, the mold tube 1 and mandrel 2 are placed as a unit in a container filled with water and the charges are ignited electrically.
  • the mold tube 1 is plastically deformed with its internal dimensions to the external dimensions of the mandrel 2, the nominal size. This reverses the original taper of the mold tube. In this way, healthy, crack-free pipe material gets into the new bath level area, while the existing surface defects 13 are shifted into the area of the new strand exit, in which they cannot have a negative influence on the strand quality.

Claims (4)

1. Procédé pour recalibrer un tube de lingotière (1) conique usé pour la coulée continue, en particulier un tube de lingotière courbe, selon lequel on introduit un mandrin de calibrage (2) dans la cavité de lingotière, on dispose de l'explosif sur le côté extérieur du tube et, par la détonation de celui-ci, on déforme la cavité de moulage aux dimensions du mandrin (2), caractérisé en ce que, s'agissant de tubes de lingotière coniques (1), on introduit le mandrin de calibrage conique (2) avec sa petite extrémité en avant par le côté (8) initialement de sortie de barre dans le tube de lingotière (1) et on déforme, à l'explosif, ce côté sortie de barre (8) en côté du métal liquide.
2. Procédé selon la revendication 1, caractérisé en ce que l'on élargit la section du côté (8) initialement de sortie de barre du tube de lingotière (1) afin de faciliter l'introduction du mandrin (2).
3. Procédé selon la revendication 2, caractérisé en ce que l'on élargit la section par déformation à l'explosif.
4. Procédé selon la revendication 3, caractérisé en ce que l'on dispose des charges explosives dans les quatres zones d'angle de la cavité de moulage du tube de lingotière et essentiellement dans les portions médianes des parois sur le côté extérieur (12) du tube de lingotière (1) et on allume ces charges simultanément.
EP80104173A 1979-07-20 1980-07-17 Procédé pour le recalibrage d'un tube de lingotière conique usé, en particulier pour une lingotière courbe de coulée continue Expired EP0023034B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT80104173T ATE2654T1 (de) 1979-07-20 1980-07-17 Verfahren zum rekalibrieren eines verschlissenen, konischen, insbesondere gebogenen kokillenrohres fuer das stranggiessen.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH676879A CH638411A5 (de) 1979-07-20 1979-07-20 Verfahren zum verformen eines verschlissenen, konischen, insbesondere gebogenen kokillenrohres.
CH6768/79 1979-07-20

Publications (2)

Publication Number Publication Date
EP0023034A1 EP0023034A1 (fr) 1981-01-28
EP0023034B1 true EP0023034B1 (fr) 1983-03-02

Family

ID=4314734

Family Applications (1)

Application Number Title Priority Date Filing Date
EP80104173A Expired EP0023034B1 (fr) 1979-07-20 1980-07-17 Procédé pour le recalibrage d'un tube de lingotière conique usé, en particulier pour une lingotière courbe de coulée continue

Country Status (8)

Country Link
US (1) US4457151A (fr)
EP (1) EP0023034B1 (fr)
JP (1) JPS5617123A (fr)
AT (1) ATE2654T1 (fr)
BR (1) BR8004441A (fr)
CA (1) CA1166423A (fr)
CH (1) CH638411A5 (fr)
DE (1) DE3062204D1 (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3211440C2 (de) * 1982-03-27 1984-04-26 Kabel- und Metallwerke Gutehoffnungshütte AG, 3000 Hannover Verfahren zur Herstellung einer Stranggießkokille mit einem mit mindestens einem Flansch versehenen Kokillenrohr aus Kupfer oder einer Kupferlegierung
CH670656A5 (fr) * 1987-04-14 1989-06-30 Fischer Ag Georg
DE19834394A1 (de) * 1998-07-30 2000-02-03 Rheinmetall W & M Gmbh Waffenrohr mit einer verschleißmindernden Hartchromschicht
DE10160134A1 (de) * 2001-12-07 2003-06-18 Km Europa Metal Ag Verfahren zur Sprengkalibrierung einer Kokille
CN103480810B (zh) * 2013-10-11 2015-07-29 重庆大学 一种h型坯连铸结晶器内腔锥度确定方法

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3646799A (en) * 1969-12-15 1972-03-07 Kabel Und Metalwerke Gutchoffn Method of making molds for continuous casting machines
US3927546A (en) * 1973-11-06 1975-12-23 Lorne Russell Shrum Mold for continuous casting of metal
ZA754574B (en) * 1974-07-29 1976-06-30 Concast Inc A method of forming the walls of continuous casting and chill
US4081983A (en) * 1977-03-29 1978-04-04 Lorne Russell Shrum Molds for the continuous casting of metals

Also Published As

Publication number Publication date
ATE2654T1 (de) 1983-03-15
US4457151A (en) 1984-07-03
EP0023034A1 (fr) 1981-01-28
JPS626899B2 (fr) 1987-02-14
CH638411A5 (de) 1983-09-30
BR8004441A (pt) 1981-01-27
DE3062204D1 (en) 1983-04-07
JPS5617123A (en) 1981-02-18
CA1166423A (fr) 1984-05-01

Similar Documents

Publication Publication Date Title
DE2533528B2 (de) Verfahren zum verformen von waenden fuer stranggiesskokillen und kokillen
DE1283442B (de) Verfahren zum waagerechten Stranggiessen von Aluminiumbaendern von weniger als 30 mm Dicke
DE1937974A1 (de) Verbundgusswalze
EP0110234A1 (fr) Pièce coulée avec canal moulé
EP0023034B1 (fr) Procédé pour le recalibrage d'un tube de lingotière conique usé, en particulier pour une lingotière courbe de coulée continue
DE60224243T2 (de) Herstellungsverfahren für nahtloses stahlrohr
DE4134066A1 (de) Verfahren zur herstellung von kleinen und kleinsten kanaelen in formgussteilen
DE102014224469B4 (de) Verfahren zum Herstellen einer, wenigstens einen metallenen Werkstoff aufweisenden Raumform, sowie Raumform
DE2813067A1 (de) Verfahren zur verformung einer stranggiesskokille mittels sprengstoff
CH685432A5 (de) Kokille zum Stranggiessen von Metall, insbesondere von Stahl in Knüppel- und Vorblockquerschnitte.
DE3412486C2 (de) Verfahren zur Herstellung von Durchlaufkokillen für Stranggußmaschinen
AT295765B (de) Kokille zum Herstellen von Hohlblöcken aus Metall oder Metallegierungen
DE1558174C3 (de) Verfahren zum Stranggießen hochschmelzender Metalle, insbesondere unlegierter oder legierter Stähle
CH644040A5 (de) Verfahren zur behandlung der innenoberflaeche eines kokillenrohres zum stranggiessen.
DE2624610B2 (de) Verfahren zur Herstellung von Felgen aus einer Aluminiumlegierung im Druckguß
DE102011106313A1 (de) Verfahren zur Herstellung eines Kokillenrohrs
DE3744958C2 (fr)
DE102006011372B4 (de) Verfahren zum geprüften Herstellen von Rohren aus Stahl
DE550627C (de) Verfahren zum Herstellen von Kupferblechen und -stangen durch Auswalzen keilartig gestalteter Barren
AT304785B (de) Verfahren zur Herstellung von streckverformten Erzeugnissen aus hochschmelzenden Metallen, insbesondere aus unlegierten oder legierten Stählen mit verbesserten Qualitätseigenschaften durch Verformung von Hohlsträngen
DE1925186C (de) Verfahren und Vorrichtung zum Aus fördern des Strangendes aus einer ge teilten Stranggießkokille, insbesondere mit ausgesparten Querschnitten
DE809089C (de) Verfahren zur Herstellung von Bloecken und Hohlkoerpern durch Verbundguss
DE1758446C (de) Verfahren und Anordnung zum Verhindern des Auslaufens von Schmelze beim Stranggießen von Metallen, ins besondere von Stahl
DE578928C (de) Verfahren und Vorrichtung zum Herstellen von Hohlzylindern mit Innen- und Aussenflanschen sowie von Lagerschalen und Koerpern beliebiger Form durch Schleuderguss
AT292935B (de) Verfahren zum kontinuierlichen Gießen von Metallen und Legierungen

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Designated state(s): AT BE DE FR GB IT LU NL SE

17P Request for examination filed

Effective date: 19801108

R17P Request for examination filed (corrected)

Effective date: 19801108

ITF It: translation for a ep patent filed

Owner name: BARZANO' E ZANARDO MILANO S.P.A.

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Designated state(s): AT BE DE FR GB IT LU NL SE

REF Corresponds to:

Ref document number: 2654

Country of ref document: AT

Date of ref document: 19830315

Kind code of ref document: T

REF Corresponds to:

Ref document number: 3062204

Country of ref document: DE

Date of ref document: 19830407

ET Fr: translation filed
ITTA It: last paid annual fee
EPTA Lu: last paid annual fee
EAL Se: european patent in force in sweden

Ref document number: 80104173.2

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 19970613

Year of fee payment: 18

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: AT

Payment date: 19970616

Year of fee payment: 18

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: BE

Payment date: 19970617

Year of fee payment: 18

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: SE

Payment date: 19970618

Year of fee payment: 18

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 19970620

Year of fee payment: 18

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 19970623

Year of fee payment: 18

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: NL

Payment date: 19970630

Year of fee payment: 18

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: LU

Payment date: 19970908

Year of fee payment: 18

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19980717

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19980717

Ref country code: AT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19980717

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19980718

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19980731

BERE Be: lapsed

Owner name: ACCUMOLD A.G.

Effective date: 19980731

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19990201

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 19980717

EUG Se: european patent has lapsed

Ref document number: 80104173.2

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19990331

NLV4 Nl: lapsed or anulled due to non-payment of the annual fee

Effective date: 19990201

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19990501

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT