EP0546885B1 - Cylindre pour une machine de coulée continue de bandes métalliques, machine de coulée continue correspondante et procédé de réalisation d'un tel cylindre - Google Patents

Cylindre pour une machine de coulée continue de bandes métalliques, machine de coulée continue correspondante et procédé de réalisation d'un tel cylindre Download PDF

Info

Publication number
EP0546885B1
EP0546885B1 EP92403219A EP92403219A EP0546885B1 EP 0546885 B1 EP0546885 B1 EP 0546885B1 EP 92403219 A EP92403219 A EP 92403219A EP 92403219 A EP92403219 A EP 92403219A EP 0546885 B1 EP0546885 B1 EP 0546885B1
Authority
EP
European Patent Office
Prior art keywords
cylinder
roughness
groove
casting machine
end zones
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 - Lifetime
Application number
EP92403219A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0546885A1 (fr
Inventor
Jean-Michel Damasse
Jean-Marie Osswald
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.)
Thyssen Stahl AG
USINOR SA
Original Assignee
Thyssen Stahl AG
USINOR Sacilor SA
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 Thyssen Stahl AG, USINOR Sacilor SA filed Critical Thyssen Stahl AG
Publication of EP0546885A1 publication Critical patent/EP0546885A1/fr
Application granted granted Critical
Publication of EP0546885B1 publication Critical patent/EP0546885B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B22CASTING; POWDER METALLURGY
    • B22DCASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D11/00Continuous casting of metals, i.e. casting in indefinite lengths
    • B22D11/06Continuous casting of metals, i.e. casting in indefinite lengths into moulds with travelling walls, e.g. with rolls, plates, belts, caterpillars
    • B22D11/0637Accessories therefor
    • B22D11/0665Accessories therefor for treating the casting surfaces, e.g. calibrating, cleaning, dressing, preheating
    • B22D11/0674Accessories therefor for treating the casting surfaces, e.g. calibrating, cleaning, dressing, preheating for machining
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B22CASTING; POWDER METALLURGY
    • B22DCASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D11/00Continuous casting of metals, i.e. casting in indefinite lengths
    • B22D11/06Continuous casting of metals, i.e. casting in indefinite lengths into moulds with travelling walls, e.g. with rolls, plates, belts, caterpillars
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B22CASTING; POWDER METALLURGY
    • B22DCASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D11/00Continuous casting of metals, i.e. casting in indefinite lengths
    • B22D11/06Continuous casting of metals, i.e. casting in indefinite lengths into moulds with travelling walls, e.g. with rolls, plates, belts, caterpillars
    • B22D11/0637Accessories therefor
    • B22D11/0648Casting surfaces
    • B22D11/0651Casting wheels

Definitions

  • the invention relates to a cylinder for a machine for continuously casting thin metal strips such as a machine for casting between two cylinders or on a cylinder.
  • a casting machine comprises at least one cylinder whose surface, or table, comes into contact with the cast metal and which ensures the forming, the solidification, the drive and the guidance of the strip.
  • the roughnesses of the extreme and central parts are very distinct and are obtained, for example, by burnishing the surface of the cylinders. On these cylinders, the roughness varies discontinuously along a generator. This results in a drawback: at the right of the discontinuity, a mark is formed on the strip which can locally weaken the strip and lead to its rupture along this mark. It then appears, on the bank, narrow ribbons which separate from the strip, get tangled and evacuate badly, which can lead to stopping the casting.
  • the object of the present invention is to provide cylinders which avoid the aforementioned drawback while ensuring good training of the strip during casting.
  • the subject of the invention is a cylinder for a machine for continuously casting thin metal strips between two cylinders or on a cylinder comprising at least one cylinder whose surface coming into contact with the cast metal has a different roughness in the extreme zones of the cylinder close to its lateral ends and in the central zone, said roughness varying continuously along any generatrix of said cylinder and the roughness of the extreme zones being greater than the roughness of the central zone.
  • the invention also relates to a method for producing a cylinder according to which a roller burnishing is carried out at variable pressure on the surface of said cylinder to obtain roughness.
  • a roller burnishing is carried out at variable pressure on the surface of said cylinder to obtain roughness.
  • the end regions of the cylinder can be machined slightly conical so that after burnishing, the generatrices of the external surface of said cylinder are rectilinear.
  • the invention finally relates to a method for producing a cylinder according to which a helical groove having the axis of the cylinder as its axis is created by machining with removal of chips from the surface of the cylinder.
  • the pitch of the propeller formed by the groove and the depth of the groove can be variable along a generatrix of the cylinder.
  • Figure 1 is a schematic side view of a cylinder according to the invention.
  • Figure 2 is a curve showing the evolution of roughness along a generatrix of the cylinder.
  • Figure 3 is a side view of a rough machining cylinder.
  • Figure 4 is a section in the vicinity of the surface of a cylinder whose roughness was obtained by machining.
  • the cylinder shown in Figure 1 corresponds to the invention. It has a generally cylindrical table 1 which is partially in contact with the cast metal when the continuous strip casting machine on which it is mounted is in service.
  • This cylinder has two lateral ends 2 and 3.
  • the table 1 of the cylinder has a certain roughness, but this roughness is not constant.
  • the roughness measured by the standardized coefficient R z is preferably between 50 and 300 ⁇ m, and in the central part 6, between 20 and 150 ⁇ m, for example respectively 150 ⁇ m and 80 ⁇ m.
  • the peculiarity of this cylinder is that the roughness varies continuously and gradually when moving along a generator of the cylinder. This is what is shown in FIG. 2.
  • Parts A and A ′ of curve 7 represent the roughness in the extreme zones. This roughness is maximum near the lateral ends of the cylinder then decreases regularly until the value of part B of the curve corresponding to the central zone of the cylinder.
  • the end zones can have a width of approximately 10 mm.
  • This roughness is necessary to have good contact between the cylinder and the thin strip during casting.
  • the greater roughness of the extreme zones is necessary to have a good training of the edges of the strip.
  • no discontinuities are created over the width of the strip, which prevents it from breaking along the discontinuity and to form ribbons on each side which would disturb the evacuation of the strip.
  • the roughness can be obtained by different methods.
  • the surface of the cylinder is burnished.
  • the roller pressure is gradually varied as the roller tool moves along the cylinder table. In the extreme zones, this pressure is high and then is gradually reduced to a lower value corresponding to the roughness of the central zone.
  • the burnishing operation which is carried out by pushing the metal inside recessed grooves, creates bumps which cause the cylinder to swell. This swelling of the cylinder is all the more important as the roughness obtained is important.
  • a cylinder according to the invention the generators of which are initially rectilinear, would have a larger outside diameter in the extreme zones than in the central zone, which would lead to a strip whose edges would be thinner than the central part.
  • the central zone of the cylinder 8 is cylindrical and of a diameter close to the final diameter desired for the cylinder.
  • the end zones 9 and 10 are machined in a slightly conical manner, so that the diameters in the vicinity of the faces 11 and 12 are smaller than the diameter of the table.
  • a person skilled in the art knows how to determine the swelling caused by burnishing. He therefore knows how to determine the conicity which must be given by machining to the extreme zones in order to have, after burnishing, a cylinder of constant diameter.
  • the roughness is obtained by machining with removal of chips.
  • a helical groove 20 with contiguous turns is created thereon having as axis the axis of the cylinder 21.
  • the surface of the cylinder 21 has a succession of hollows 23 and bumps 24.
  • the recesses 23 correspond to the bottom of the groove 20 and the bumps 24 at the junction between two successive turns.
  • This groove 20 is obtained by machining by turning with a significant advance of the tool. If the advance at each turn is a , the groove 20 has a depth h ; if the advance is a 'larger than a, the depth of the groove 20 is h' greater than h.
  • the roughness which corresponds to the depth of the groove 20 can be varied.
  • a large advance will be chosen in the zones of the surface of the cylinder which are located near the lateral ends of the latter and a lower advance in the central zone.
  • an advance of 0.35 mm per revolution is chosen over the first 15 mm and the last 15 mm of the cylinder table from its lateral ends and an advance of 0.15 mm / revolution on the middle area of the table.
  • a roughness Rz is thus obtained 150 ⁇ m on the areas where the feed is 0.35 mm / turn and a roughness of 80 ⁇ m on the area where the feed is 0.15 mm / turn.
  • the advance is varied gradually to obtain a roughness which varies continuously along a generatrix of the surface of the cylinder.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Continuous Casting (AREA)
  • Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
  • Cylinder Crankcases Of Internal Combustion Engines (AREA)
  • Reduction Rolling/Reduction Stand/Operation Of Reduction Machine (AREA)
  • Rolls And Other Rotary Bodies (AREA)
  • Metal Rolling (AREA)
EP92403219A 1991-12-11 1992-11-27 Cylindre pour une machine de coulée continue de bandes métalliques, machine de coulée continue correspondante et procédé de réalisation d'un tel cylindre Expired - Lifetime EP0546885B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9115383A FR2684904B1 (fr) 1991-12-11 1991-12-11 Cylindre pour une machine de coulee continue de bandes metalliques, machine de coulee continue correspondante et procede de realisation d'un tel cylindre.
FR9115383 1991-12-11

Publications (2)

Publication Number Publication Date
EP0546885A1 EP0546885A1 (fr) 1993-06-16
EP0546885B1 true EP0546885B1 (fr) 1997-08-13

Family

ID=9419931

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92403219A Expired - Lifetime EP0546885B1 (fr) 1991-12-11 1992-11-27 Cylindre pour une machine de coulée continue de bandes métalliques, machine de coulée continue correspondante et procédé de réalisation d'un tel cylindre

Country Status (12)

Country Link
EP (1) EP0546885B1 (xx)
JP (1) JP3181739B2 (xx)
KR (1) KR100295519B1 (xx)
AT (1) ATE156734T1 (xx)
AU (1) AU658463B2 (xx)
CA (1) CA2084232C (xx)
DE (2) DE69221591T2 (xx)
DK (1) DK0546885T3 (xx)
ES (1) ES2106152T3 (xx)
FR (1) FR2684904B1 (xx)
GR (1) GR3024977T3 (xx)
ZA (1) ZA929567B (xx)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011050417A1 (en) * 2009-10-30 2011-05-05 Bluescope Steel Limited Method and apparatus for controlling variable shell thickness in cast strip

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE69419593T3 (de) * 1993-11-18 2005-06-09 Castrip, Llc (N.D.Ges.D. Staates Delaware) Giessen eines kontinuierlichen stahlbandes auf eine oberfläche mit bestimmter rauhigkeit
AUPN281195A0 (en) * 1995-05-05 1995-06-01 Bhp Steel (Jla) Pty Limited Casting steel strip
AUPP040397A0 (en) * 1997-11-14 1997-12-11 Bhp Steel (Jla) Pty Limited Casting metal strip
KR100356176B1 (ko) * 1998-12-21 2002-11-18 주식회사 포스코 쌍롤형 박판주조기용 냉각롤
CN101137453B (zh) * 2005-03-10 2012-09-05 Sms西马格股份公司 用于制造连铸结晶器的方法和连铸结晶器
DE102005023745B4 (de) 2005-03-10 2022-02-10 Sms Group Gmbh Verfahren zum Herstellen einer Stranggiesskokille und Stranggiesskokille
JP4821199B2 (ja) * 2005-07-12 2011-11-24 株式会社Ihi 双ロール鋳造機
KR101712005B1 (ko) * 2014-04-24 2017-03-03 주식회사 오리온이엔씨 현장형 수질 방사능 감시 방법 및 장치
US20180179612A1 (en) * 2016-12-23 2018-06-28 Posco Duplex stainless steel sheet having excellent corrosion resistance and method for manufacturing the same
KR102257327B1 (ko) * 2019-07-03 2021-05-31 한국원자력연구원 방사선 측정 장치 및 이를 이용한 방사성 오염도 측정 방법
KR102577739B1 (ko) * 2023-02-06 2023-09-12 향상기업주식회사 홈이 형성된 금속판 및 이의 제조방법

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4705095A (en) * 1986-01-09 1987-11-10 Ribbon Technology Corporation Textured substrate and method for the direct, continuous casting of metal sheet exhibiting improved uniformity
JPS62240149A (ja) * 1986-04-14 1987-10-20 Sumitomo Metal Ind Ltd 連続鋳造機用鋳片案内ロ−ル
JPS6483343A (en) * 1987-09-24 1989-03-29 Nippon Steel Corp Method for continuously casting cast thin slab
JPH082479B2 (ja) * 1988-07-22 1996-01-17 日新製鋼株式会社 薄板連鋳機
FR2654659B1 (fr) * 1989-11-23 1992-02-07 Siderurgie Fse Inst Rech Procede et dispositif de coulee continue sur un ou entre deux cylindres.
US5179996A (en) * 1989-11-23 1993-01-19 Usinor Sacilor Process and device for continuous casting on a roll or between two rolls

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011050417A1 (en) * 2009-10-30 2011-05-05 Bluescope Steel Limited Method and apparatus for controlling variable shell thickness in cast strip

Also Published As

Publication number Publication date
CA2084232C (fr) 2003-02-25
DE69221591D1 (de) 1997-09-18
JP3181739B2 (ja) 2001-07-03
EP0546885A1 (fr) 1993-06-16
GR3024977T3 (en) 1998-01-30
CA2084232A1 (fr) 1993-06-12
AU2992992A (en) 1993-06-17
FR2684904A1 (fr) 1993-06-18
KR930012145A (ko) 1993-07-20
DK0546885T3 (da) 1997-10-27
ES2106152T3 (es) 1997-11-01
ZA929567B (en) 1994-06-10
FR2684904B1 (fr) 1994-03-18
ATE156734T1 (de) 1997-08-15
AU658463B2 (en) 1995-04-13
DE69221591T2 (de) 1998-01-22
JPH05329585A (ja) 1993-12-14
KR100295519B1 (ko) 2001-09-17
DE4241775A1 (xx) 1993-07-08

Similar Documents

Publication Publication Date Title
EP0546885B1 (fr) Cylindre pour une machine de coulée continue de bandes métalliques, machine de coulée continue correspondante et procédé de réalisation d'un tel cylindre
EP0119182B1 (fr) Procédé pour améliorer l'état de surface d'un cylindre
EP0098224B1 (fr) Nouvelle prothèse osseuse et son obtention
EP0170539B1 (fr) Procédé et dispositif de fabrication d'un tube de carton calibré à tres faible rugosité de surface et haute stabilité dimensionnelle
EP1175280B1 (fr) Procede de fabrication d'une surface d'une lentille ophtalmique et installation de mise en oeuvre du procede
WO1991011090A1 (fr) Procede de fabrication de circuits imprimes souples, circuit imprime fabrique par ce procede, et dispositif pour la mise en ×uvre de ce procede
EP0637504A2 (fr) Moule pour pneumatique et procédé de moulage de pneumatique
FR2490119A1 (fr) Procede d'obtention, dans une ebauche tubulaire, d'une paroi en bout presentant un creux concentrique et produit tubulaire ainsi obtenu
FR2495507A1 (fr) Procede de fabrication de bouteilles d'aerosol en aluminium
FR2529485A1 (fr) Procede pour changer la distribution, en largeur, de l'epaisseur d'une bande de metal
CH650724A5 (fr) Procede de fabrication d'un support tronconique, utilisable notamment pour le bobinage de fils et/ou de rubans textiles.
CA2030610C (fr) Procede et dispositif de coulee continue sur un ou entre deux cylindres
EP0177418B1 (fr) Dispositif de tronçonnage d'un tube carton à surface dure
LU87790A1 (fr) Matrice en plusieurs elements pour la coulee de petits segments de moule pour pneumatiques
EP0407323B1 (fr) Procédé et dispositif de coulée continue entre cylindres de produits métalliques minces aptes au laminage à froid direct
EP0324327B1 (fr) Procédé de marquage de la surface d'un cylindre de laminoir
EP0968848B1 (fr) Bande de roulement de pneumatique comportant des incisions delimitant des plots de gomme
FR2627405A1 (fr) Procede de filage de metal, specialement d'aluminium, et presse de filage pour la mise en oeuvre du procede
FR2864916A1 (fr) Procede de realisation de canaux dans un dispositif d'injection de carburant, electrode adaptee a sa mise en oeuvre et dispositif ainsi obtenu
EP0211450A1 (fr) Procédé et installation de fixation de plaques d'impression sur un cylindre porte-plaques
FR2576826A1 (fr) Procede de fabrication de bouchons en liege naturel
FR2589374A1 (fr) Procede pour la realisation de filetages et outil pour la mise en oeuvre de ce procede
EP0198750A1 (fr) Procédé de fabrication d'un déviateur pour système vis-écrou à billes à recyclage interne
FR2710003A1 (fr) Procédé de fabrication d'objets en polystyrène expansé et objets ainsi obtenus.
FR2483269A1 (fr) Ouvreur de bobine

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

Kind code of ref document: A1

Designated state(s): AT BE CH DE DK ES FR GB GR IE IT LI LU NL PT SE

17P Request for examination filed

Effective date: 19930731

17Q First examination report despatched

Effective date: 19960311

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE CH DE DK ES FR GB GR IE IT LI LU NL PT SE

REF Corresponds to:

Ref document number: 156734

Country of ref document: AT

Date of ref document: 19970815

Kind code of ref document: T

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

ITF It: translation for a ep patent filed

Owner name: FUMERO BREVETTI S.N.C.

GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)

Effective date: 19970814

REF Corresponds to:

Ref document number: 69221591

Country of ref document: DE

Date of ref document: 19970918

REG Reference to a national code

Ref country code: DK

Ref legal event code: T3

REG Reference to a national code

Ref country code: ES

Ref legal event code: FG2A

Ref document number: 2106152

Country of ref document: ES

Kind code of ref document: T3

REG Reference to a national code

Ref country code: GR

Ref legal event code: FG4A

Free format text: 3024977

REG Reference to a national code

Ref country code: PT

Ref legal event code: SC4A

Free format text: AVAILABILITY OF NATIONAL TRANSLATION

Effective date: 19971020

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

26N No opposition filed
REG Reference to a national code

Ref country code: GB

Ref legal event code: IF02

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

Ref country code: CH

Payment date: 20031015

Year of fee payment: 12

Ref country code: AT

Payment date: 20031015

Year of fee payment: 12

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

Ref country code: LU

Payment date: 20031016

Year of fee payment: 12

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

Ref country code: SE

Payment date: 20031017

Year of fee payment: 12

Ref country code: NL

Payment date: 20031017

Year of fee payment: 12

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

Ref country code: DK

Payment date: 20031020

Year of fee payment: 12

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

Ref country code: ES

Payment date: 20031023

Year of fee payment: 12

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

Ref country code: IE

Payment date: 20031029

Year of fee payment: 12

Ref country code: GR

Payment date: 20031029

Year of fee payment: 12

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

Ref country code: DE

Payment date: 20031107

Year of fee payment: 12

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

Ref country code: FR

Payment date: 20031117

Year of fee payment: 12

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

Ref country code: GB

Payment date: 20031121

Year of fee payment: 12

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

Ref country code: PT

Payment date: 20031202

Year of fee payment: 12

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

Ref country code: BE

Payment date: 20031208

Year of fee payment: 12

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: 20041127

Ref country code: GB

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

Effective date: 20041127

Ref country code: AT

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

Effective date: 20041127

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: 20041128

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

Ref country code: IE

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

Effective date: 20041129

Ref country code: ES

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

Effective date: 20041129

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

Ref country code: LI

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

Effective date: 20041130

Ref country code: DK

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

Effective date: 20041130

Ref country code: CH

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

Effective date: 20041130

Ref country code: BE

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

Effective date: 20041130

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

Ref country code: PT

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

Effective date: 20050527

BERE Be: lapsed

Owner name: *THYSSEN STAHL A.G.

Effective date: 20041130

Owner name: *USINOR SACILOR

Effective date: 20041130

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: 20050601

Ref country code: DE

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

Effective date: 20050601

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

Ref country code: GR

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

Effective date: 20050602

REG Reference to a national code

Ref country code: DK

Ref legal event code: EBP

EUG Se: european patent has lapsed
REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

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

Effective date: 20041127

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: 20050729

REG Reference to a national code

Ref country code: PT

Ref legal event code: MM4A

Effective date: 20050527

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

Effective date: 20050601

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

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

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES;WARNING: LAPSES OF ITALIAN PATENTS WITH EFFECTIVE DATE BEFORE 2007 MAY HAVE OCCURRED AT ANY TIME BEFORE 2007. THE CORRECT EFFECTIVE DATE MAY BE DIFFERENT FROM THE ONE RECORDED.

Effective date: 20051127

REG Reference to a national code

Ref country code: ES

Ref legal event code: FD2A

Effective date: 20041129

REG Reference to a national code

Ref country code: IE

Ref legal event code: MM4A

BERE Be: lapsed

Owner name: *THYSSEN STAHL A.G.

Effective date: 20041130

Owner name: *USINOR SACILOR

Effective date: 20041130