Global Patent Index - EP 1020240 A1

EP 1020240 A1 2000-07-19 - Method of tension/compression control in a multistand hot rolling mill and corresponding control system

Title (en)

Method of tension/compression control in a multistand hot rolling mill and corresponding control system

Title (de)

Verfahren zur Zug-/Druckregelung in einem Vielständer-Warmwalzwerk und entsprechendes Regelungssystem

Title (fr)

Procédé de régulation des tractions/compressions dans un laminoir multicage à chaud et système de commande correspondant

Publication

EP 1020240 A1 (FR)

Application

EP 00400038 A

Priority

FR 9900181 A

Abstract (en)

Regulation of the traction and/or compression in a multi-cage rolling mill working with hot metal products comprises measuring the value of the rolling couple for each cage (11, 12, 1j, 1n) traversed by the metal product (B) at the moment where this product goes on to reach the following cage and then when the cage for which the measure is effected is commuted by regulation of the couple. The last cage reached by the product delayed by regulation of the speed and acts in so far as a pilot cage with respect to all other cages situated upstream, in order to allow this to conserve a couple equal to its reference couple by adaptation of its seed. When the measures of the reference couple have been memorized in the control system (2, 3) the regulation is obtained by exploitation of a key of the distribution of the constraints between cages. The control system using this method of regulation for a multi-cage hot rolling mill is also claimed.

Abstract (fr)

La valeur de couple de laminage est mesurée pour chaque cage (11,12,1i,1n) traversée par un produit métallique (B) au moment où ce produit va atteindre la cage suivante et alors que la cage pour laquelle la mesure est effectuée est commutée en régulation de couple. La dernière cage atteinte par le produit demeure en régulation de vitesse et agit en tant que cage pilote vis-à-vis de toute autre cage située en amont, pour permettre à celle-ci de conserver un couple égal à son couple de référence par une adaptation de sa vitesse. Lorsque les mesures de couple de référence ont été mémorisées dans le système de commande (2,3) la régulation est obtenue par exploitation d'une clé de répartition des contraintes entre cages. <IMAGE>

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

B21B 37/52

IPC 8 full level (invention and additional information)

B21B 37/00 (2006.01); B21B 37/48 (2006.01); B21B 37/52 (2006.01)

CPC (invention and additional information)

B21B 37/52 (2013.01); B21B 2275/04 (2013.01); B21B 2275/12 (2013.01)

Citation (search report)

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

EP 1020240 A1 20000719; EP 1020240 B1 20030312; AT 234166 T 20030315; BR 0000530 A 20001017; CN 1260251 A 20000719; DE 60001589 D1 20030417; DE 60001589 T2 20040408; DK 1020240 T3 20030714; ES 2193922 T3 20031116; FR 2788233 A1 20000713; FR 2788233 B1 20010223; ID 24145 A 20000713; JP 2000202513 A 20000725; KR 20000053431 A 20000825; PT 1020240 E 20030731; TW 524724 B 20030321; US 6205829 B1 20010327

INPADOC legal status


2005-04-16 [REG ES FD2A] ANNOUNCEMENT OF LAPSE IN SPAIN

- Effective date: 20040112

2005-01-10 [PG25 IT] LAPSED IN A CONTRACTING STATE ANNOUNCED VIA POSTGRANT INFORM. FROM NAT. OFFICE TO EPO

- Ref Country Code: IT

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

- Effective date: 20050110

2004-10-29 [REG FR ST] NOTIFICATION OF LAPSE

2004-10-20 [REG IE MM4A] PATENT LAPSED

2004-10-01 [NLV4] NL: LAPSED OR ANULLED DUE TO NON-PAYMENT OF THE ANNUAL FEE

- Effective date: 20040801

2004-09-30 [PG25 FR] LAPSED IN A CONTRACTING STATE ANNOUNCED VIA POSTGRANT INFORM. FROM NAT. OFFICE TO EPO

- Ref Country Code: FR

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

- Effective date: 20040930

2004-09-15 [REG CH PL] PATENT CEASED

2004-09-06 [REG DK EBP] PATENT LAPSED

2004-09-01 [GBPC] GB: EUROPEAN PATENT CEASED THROUGH NON-PAYMENT OF RENEWAL FEE

- Effective date: 20040110

2004-08-31 [EUG] SE: EUROPEAN PATENT HAS LAPSED

2004-08-04 [PG25 GR] LAPSED IN A CONTRACTING STATE ANNOUNCED VIA POSTGRANT INFORM. FROM NAT. OFFICE TO EPO

- Ref Country Code: GR

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

- Effective date: 20040804

2004-08-03 [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: 20040803

2004-08-01 [PG25 NL] LAPSED IN A CONTRACTING STATE ANNOUNCED VIA POSTGRANT INFORM. FROM NAT. OFFICE TO EPO

- Ref Country Code: NL

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

- Effective date: 20040801

2004-07-31 [BERE] BE: LAPSED

- Owner name: *ALSTOM

- Effective date: 20040131

2004-07-31 [PG25 PT] LAPSED IN A CONTRACTING STATE ANNOUNCED VIA POSTGRANT INFORM. FROM NAT. OFFICE TO EPO

- Ref Country Code: PT

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

- Effective date: 20040731

2004-03-03 [26N] NO OPPOSITION FILED

- Effective date: 20031215

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

- Ref Country Code: DK

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

- Effective date: 20040202

2004-01-31 [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: 20040131

2004-01-31 [PG25 CH] LAPSED IN A CONTRACTING STATE ANNOUNCED VIA POSTGRANT INFORM. FROM NAT. OFFICE TO EPO

- Ref Country Code: CH

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

- Effective date: 20040131

2004-01-31 [PG25 LI] LAPSED IN A CONTRACTING STATE ANNOUNCED VIA POSTGRANT INFORM. FROM NAT. OFFICE TO EPO

- Ref Country Code: LI

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

- Effective date: 20040131

2004-01-31 [PG25 MC] LAPSED IN A CONTRACTING STATE ANNOUNCED VIA POSTGRANT INFORM. FROM NAT. OFFICE TO EPO

- Ref Country Code: MC

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

- Effective date: 20040131

2004-01-12 [PG25 ES] LAPSED IN A CONTRACTING STATE ANNOUNCED VIA POSTGRANT INFORM. FROM NAT. OFFICE TO EPO

- Ref Country Code: ES

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

- Effective date: 20040112

2004-01-12 [PG25 IE] LAPSED IN A CONTRACTING STATE ANNOUNCED VIA POSTGRANT INFORM. FROM NAT. OFFICE TO EPO

- Ref Country Code: IE

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

- Effective date: 20040112

2004-01-11 [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: 20040111

2004-01-10 [PG25 AT] LAPSED IN A CONTRACTING STATE ANNOUNCED VIA POSTGRANT INFORM. FROM NAT. OFFICE TO EPO

- Ref Country Code: AT

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

- Effective date: 20040110

2004-01-10 [PG25 CY] LAPSED IN A CONTRACTING STATE ANNOUNCED VIA POSTGRANT INFORM. FROM NAT. OFFICE TO EPO

- Ref Country Code: CY

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

- Effective date: 20040110

2004-01-10 [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: 20040110

2004-01-10 [PG25 GB] LAPSED IN A CONTRACTING STATE ANNOUNCED VIA POSTGRANT INFORM. FROM NAT. OFFICE TO EPO

- Ref Country Code: GB

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

- Effective date: 20040110

2004-01-10 [PG25 LU] LAPSED IN A CONTRACTING STATE ANNOUNCED VIA POSTGRANT INFORM. FROM NAT. OFFICE TO EPO

- Ref Country Code: LU

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

- Effective date: 20040110

2003-11-16 [REG ES FG2A] DEFINITIVE PROTECTION

- Document: ES 2193922 T3

2003-07-16 [REG GR EP] EP PATENT VALIDATED IN GREECE

- Document: GR 20030402011

2003-07-14 [REG DK T3] TRANSLATION OF EP PATENT

2003-07-01 [REG SE TRGR] TRANSLATION OF GRANTED EP PATENT

2003-04-17 [REF] CORRESPONDS TO:

- Document: DE 60001589 P 20030417

2003-04-16 [REG IE FG4D] EUROPEAN PATENTS GRANTED DESIGNATING IRELAND

- Free text: FRENCH

2003-04-02 [GBT] GB: TRANSLATION OF EP PATENT FILED (GB SECTION 77(6)(A)/1977)

- Effective date: 20030312

2003-03-27 [REG CH NV] NEW AGENT

- Representative's name: CABINET ROLAND NITHARDT CONSEILS EN PROPRIETE INDU

2003-03-14 [REG CH EP] ENTRY IN THE NATIONAL PHASE

2003-03-12 [AK] DESIGNATED CONTRACTING STATES:

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

2003-03-12 [REG GB FG4D] EUROPEAN PATENT GRANTED

- Free text: NOT ENGLISH

2002-06-26 [17Q] FIRST EXAMINATION REPORT

- Effective date: 20020513

2001-04-04 [AKX] PAYMENT OF DESIGNATION FEES

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

2001-03-21 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 20010119

2000-07-19 [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

2000-07-19 [AX] REQUEST FOR EXTENSION OF THE EUROPEAN PATENT TO

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