Global Patent Index - EP 1051272 A1

EP 1051272 A1 2000-11-15 - DEVICE FOR CONTINUOUS CASTING IN VERTICAL CHARGE OF A MELTING METAL

Title (en)

DEVICE FOR CONTINUOUS CASTING IN VERTICAL CHARGE OF A MELTING METAL

Title (de)

VERTIKAL-STRANGGIESSKOKILLE MIT AUFSATZ

Title (fr)

DISPOSITIF POUR LA COULEE CONTINUE EN CHARGE VERTICALE D'UN METAL EN FUSION

Publication

EP 1051272 A1 (FR)

Application

EP 99973265 A

Priority

  • BE 9900148 W
  • BE 9800881 A

Abstract (en)

[origin: WO0033991A1] The invention concerns a device for continuous casting in vertical charge of a melting metal in the form of slabs, using a copper ingot mould (1) extended by a preheater (2) made of refractory material, the preheater (2) being positioned above the ingot mould (1) such that the liquid steel level, or meniscus (S), is located during the continuous casting operation in said refractory material preheater (2) and not in the copper ingot mould (1) proper. Between the copper ingot mould (1) and the preheater (2) is arranged a joint element made of refractory material consisting of bars (3), (4), (5), (6), (7), (8). The bars are positioned such that their assembly defines a joint element with an internal shape similar to that of the ingot mould and whereof the inner surfaces are the extension of the ingot mould corresponding inner surfaces, with a choice of dimensions such that the ratio of a bar transverse cross-section, expressed in mm<2>, to the length of said bar, expressed in mm, is not less than 2.4 mm. Moreover, the bars are parallelepiped in shape and their cross-section has a height/length ratio ranging between 0.4 and 0.6. Each bar (4), (6) is supported against a rear stop (12), (13) serving to position it in perfect alignment, allowing for the mechanical assembly clearances, with the ingot mould surface whereof it constitutes the extension and prevent it from being pushed backwards by the slab, and each bar (4) is machined (R) to receive a maintaining clamping claw (9), the latter ensuring the double function of pressing the bar vertically so that it remains in contact with the ingot mould top edge during the oscillating motion of the latter, and to prevent the bar from moving away from the alignment with the ingot mould surface whereof it is an extension by moving towards the slab centre, in particular at the start of the operation of continuous casting in vertical charge.

IPC 1-7 (main, further and additional classification)

B22D 11/04

IPC 8 full level (invention and additional information)

B22D 11/041 (2006.01); B22D 11/04 (2006.01); B22D 11/059 (2006.01)

CPC (invention and additional information)

B22D 11/0401 (2013.01)

Citation (search report)

See references of WO 0033991A1

Designated contracting state (EPC)

AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

EPO simple patent family

WO 0033991 A1 20000615; BE 1012325 A3 20000905; DE 69909052 D1 20030731; DE 69909052 T2 20040429; EP 1051272 A1 20001115; EP 1051272 B1 20030625; JP 2002531273 A 20020924

INPADOC legal status


2005-07-05 [EUG] SE: EUROPEAN PATENT HAS LAPSED

2004-11-17 [PG25 SE] LAPSED IN A CONTRACTING STATE ANNOUNCED VIA POSTGRANT INFORM. FROM NAT. OFFICE TO EPO

- Ref Country Code: SE

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

- Effective date: 20041117

2004-06-16 [26N] NO OPPOSITION FILED

- Effective date: 20040326

2004-06-02 [PG25 DE] LAPSED IN A CONTRACTING STATE ANNOUNCED VIA POSTGRANT INFORM. FROM NAT. OFFICE TO EPO

- Ref Country Code: DE

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

- Effective date: 20040602

2004-05-31 [BERE] BE: LAPSED

- Owner name: *CENTRE DE RECHERCHES METALLURGIQUES - CENTRUM VOO

- Effective date: 20031130

2004-02-25 [REG IE FD4D] EUROPEAN PATENTS DESIGNATING IRELAND TREATED AS ALWAYS HAVING BEEN VOID

2003-11-30 [PG25 BE] LAPSED IN A CONTRACTING STATE ANNOUNCED VIA POSTGRANT INFORM. FROM NAT. OFFICE TO EPO

- Ref Country Code: BE

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

- Effective date: 20031130

2003-11-25 [LTIE] LT: INVALIDATION OF EUROPEAN PATENT OR PATENT EXTENSION

- Effective date: 20030625

2003-11-16 [PG25 FI] LAPSED IN A CONTRACTING STATE ANNOUNCED VIA POSTGRANT INFORM. FROM NAT. OFFICE TO EPO

- Ref Country Code: FI

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

- Effective date: 20031116

2003-09-23 [REG SE TRGR] TRANSLATION OF GRANTED EP PATENT

2003-09-04 [PGFP SE] POSTGRANT: ANNUAL FEES PAID TO NATIONAL OFFICE

- Ref Country Code: SE

- Payment date: 20030904

- Year of fee payment: 5

2003-07-31 [REF] CORRESPONDS TO:

- Document: DE 69909052 P 20030731

2003-07-23 [REG IE FG4D] EUROPEAN PATENTS GRANTED DESIGNATING IRELAND

- Free text: FRENCH

2003-06-25 [AK] DESIGNATED CONTRACTING STATES:

- Designated State(s): BE DE FI SE

2000-11-15 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 20000623

2000-11-15 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A1

- Designated State(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

2000-11-15 [AX] REQUEST FOR EXTENSION OF THE EUROPEAN PATENT TO

- Free text: AL;LT;LV;MK;RO;SI